Two players with identical CUS scores will get different CUP scores if they play in different organizations. That is not a flaw in the model. It reflects a real difference in how quickly they will actually reach the majors.
The MKDC call-up probability model uses 12 structural features to score prospects. One of those features is the organizational coefficient, a multiplier derived from each team's historical promotion behavior. A player at Triple-A for Colorado gets a different probability than an identical player at Triple-A for Tampa Bay. Not because their talent is different. Because the organization standing between them and a major league lineup is different.
This is not about front office quality or farm system ranking. A team with a weak farm system might still promote aggressively from it. A team with elite prospect depth might be the most conservative promoter in baseball because their MLB roster is already set. The org coefficient captures promotion behavior specifically, not organizational strength overall.
The practical implication: if you are trying to predict when a prospect gets called up, you need to understand the organization as much as the player. A prospect's readiness is necessary but not sufficient. The org has to want to promote them.
The org coefficient is a single multiplier, but it encodes years of organizational decision-making history. Teams that consistently promote prospects early score above 1.0. Teams that consistently hold prospects back score below 1.0.
The coefficient is not based on a single season. It reflects a multi-year pattern of promotion decisions adjusted for context. A team in rebuild mode gets some credit for the structural context of those promotions. A contending team that holds back a Triple-A-ready player gets penalized for the suppression even when there is a roster justification.
The scale is narrow because the real variation between organizations is narrower than most people expect. The difference between the most aggressive and most conservative org in the model is 0.17 points, which sounds small but compounds meaningfully across a 90-day window. A player with 25% base CUP ends up at 25.5% in a 1.02 org and 21.25% in a 0.85 org. Over 27 prospects, those differences add up to meaningfully different Brier score outcomes at calibration.
| Organization | Coefficient | Tendency | 2026 Key Prospect |
|---|---|---|---|
| Colorado Rockies | 1.02 | Most aggressive in model | Zac Veen |
| Milwaukee Brewers | 1.01 | Aggressively promotes, deep system | Jett Williams, Luis Pena |
| Pittsburgh Pirates | 1.00 | Balanced, situation-dependent | Konnor Griffin |
| Cleveland Guardians | 0.99 | Data-driven, measured pace | Travis Bazzana |
| New York Mets | 0.99 | Star-track promotes early, depth holds | Carson Benge (resolved) |
| Baltimore Orioles | 0.98 | Methodical, extension-first culture | Samuel Basallo (resolved) |
| Seattle Mariners | 0.97 | Service time cautious, PPI-aware | Colt Emerson |
| Miami Marlins | 0.97 | Promotes from need, thin roster | Thomas White |
| Los Angeles Dodgers | 0.88 | Logjam org, depth blocks all paths | De Paula, Hope (below threshold) |
| Tampa Bay Rays | 0.85 | Most conservative in model | Theo Gillen, Xavier Isaac |
Some organizations promote prospects as soon as they are structurally ready, accepting the service time cost because the competitive or developmental benefit outweighs the cost. Colorado leads this group in the current model.
Colorado Rockies (1.02). Colorado carries the highest org coefficient in the model. This reflects a consistent pattern: when a Rockies prospect is Triple-A-ready, they tend to promote without extended service time games. Part of this is structural. Colorado is rarely in a position where service time calculus drives decisions the same way a contending team would calculate it. Part of it is organizational philosophy. The Rockies have promoted prospects at a faster-than-average clip historically even when the competitive incentive was limited. Zac Veen in 2026 is the clearest current example: on the 40-man, Triple-A-ready, 1.02 org coefficient, and a thin outfield making a call-up structurally plausible within the April window.
Milwaukee Brewers (1.01). Milwaukee is the other consistently aggressive promotion org in the model. They have a history of calling up prospects earlier than comparable teams would, sometimes before the Triple-A track record is fully established. The Brewers also tend to use the 40-man roster more aggressively, adding prospects to protect them and paving the way for shorter timelines. The catch in 2026 is that their infield is extremely deep. Jett Williams carries a high PPI status but is not yet on the 40-man, and Luis Pena and Cooper Pratt are both developmental players still working through the minor league system. Even an aggressive promotion org has positional limits.
Pittsburgh Pirates (1.00). Pittsburgh sits at exactly 1.00, which means the coefficient neither helps nor hurts a prospect's CUP. They are a balanced org: not aggressive enough to warrant a positive multiplier, not conservative enough to warrant suppression. What makes Pittsburgh interesting in 2026 is the PPI factor. The Pirates have strong incentive to promote Konnor Griffin before April 9. If they do, that is a single data point suggesting the coefficient should move toward 1.01 or 1.02 for the next model version. If they hold him past April 9 and service time suppression, the coefficient stays at 1.00 or moves slightly lower.
Some organizations consistently keep prospects in the minors longer than the structural situation would warrant. The reasons vary: deep MLB rosters, explicit service time management culture, patient development philosophies. The effect on CUP scores is material.
Tampa Bay Rays (0.85). Tampa Bay carries the lowest org coefficient in the model at 0.85. This is the most meaningful suppressor in the current dataset. A player with 20% base CUP drops to 17% under the Rays' coefficient, which is a material change in how the leaderboard ranks them. The Rays' pattern is consistent and well-documented: they develop prospects through their system on a patient timeline, tend to keep prospects at Triple-A Durham until they have an extended body of work, and have historically been among the slowest organizations to promote even when the MLB roster has a clear opening. Theo Gillen (AA, 2026) and Xavier Isaac (A+, back from brain surgery) both carry this suppressor as the dominant factor in their low CUP scores. The coefficient alone explains most of the difference between their CUP and a comparable player in a different org.
Los Angeles Dodgers (0.88). The Dodgers' conservative coefficient is driven by a different mechanism than Tampa Bay's. It is not a patient development philosophy so much as a structural logjam. The Dodgers' MLB outfield and rotation are among the most stocked in baseball. Josue De Paula and Zyhir Hope are both below threshold in Sub-Batch A not because of their talent or development pace but because the Dodgers have Tucker, Pages, Hernandez, and multiple AAA depth players all ahead of them in a realistic call-up hierarchy. The coefficient reflects this pattern: the Dodgers have historically not promoted top prospects to MLB roles until a roster opening actually exists, and roster openings in Los Angeles are rare.
Seattle Mariners (0.97). Seattle sits below neutral at 0.97, reflecting a measured approach to service time. The Kevin Mather episode in 2021, where the Mariners' then-president openly cited service time manipulation for prospect delays, is the most famous example of a pattern that predates that moment. Seattle has been PPI-aware since the 2022 CBA introduced the incentive, but they still tend toward short suppression windows rather than Opening Day promotions for players who are not firmly established at Triple-A. Colt Emerson in 2026 is the current test case. Crawford's shoulder injury has created a genuine roster opening. The model had Emerson at 24% CUP before the injury news. The coefficient was already working against him slightly.
Most organizations fall into the middle band, where the coefficient is close to 1.00 and organizational philosophy is less determinative than the specific roster situation. These orgs are harder to model because their behavior varies significantly based on competitive context.
Cleveland Guardians (0.99). Cleveland is one of the more analytically driven organizations in the game. They tend to promote when the data says a player is ready, but they also run explicit service time windows and have historically been willing to absorb short-term cost for long-term control. Travis Bazzana in 2026 is a case where the coefficient barely matters: the service time suppression window (Pathway A) is the dominant factor, and Cleveland has been explicit that the May timeline is driven by service time mechanics rather than any doubt about his readiness. Vogt's "go play, stay ready" framing is characteristic of how the Guardians communicate these decisions.
Baltimore Orioles (0.98). Baltimore under Mike Elias is methodical but not aggressively conservative. They tend to promote prospects when the service time window is appropriate and the roster situation supports it. The Samuel Basallo case in 2025 was instructive: they debuted him in August, signed the extension immediately, and structured the relationship around his long-term presence in Baltimore. The extension culture matters here. A team that extends prospects right after debut is signaling they plan to keep them, which affects how aggressively they need to manage service time going forward. Basallo's 8-year/$67M extension signed in August 2025 means the Orioles have a different calculus going forward than they did before the deal.
Miami Marlins (0.97). Miami promotes from need. They are not an aggressive promotion org by philosophy, but their roster is chronically thin enough that need-driven call-ups happen faster than a pure developmental timeline would suggest. Thomas White in 2026 is in this bucket: MIA's rotation is genuinely thin, and when he clears the oblique injury, the promotional path exists. The coefficient is slightly below neutral because Miami has also had periods of holding pitching prospects back longer than roster need would require, particularly when injury risk is a concern.
Service time suppression is legal, common, and extensively documented. Understanding the mechanics helps explain why so many prospects with apparent MLB readiness still start the season in Triple-A.
A full year of MLB service time is 172 days. The regular season is approximately 187 days. That gap creates a structural incentive: if a team can hold a prospect down for 16 or more days, the player falls short of 172 service days and does not earn a full year of service time. Over a career, that costs the player a year of arbitration and potentially a year of free agency. The team gains an extra year of control at pre-arbitration cost.
The 2022 CBA attempted to address this in two ways. First, any player who finishes in the top two of Rookie of the Year voting earns a full year of service regardless of call-up date. Second, the Prospect Promotion Incentive creates a compensatory draft pick for teams that promote eligible prospects early enough. Neither mechanism has eliminated service time suppression, but both have changed the calculation for teams with legitimate PPI-eligible prospects.
The practical result in 2026: most prospects starting the season at Triple-A who are on 40-man rosters will be called up around the April 9 to April 16 window. That is the period when service time suppression ends and the benefit of holding a player down diminishes. The ECD mid values in Sub-Batch A cluster heavily in that range for exactly this reason. See how the MKDC model handles this through the Pathway A service time designation.
The Prospect Promotion Incentive was introduced in the 2022 CBA as a mechanism to reduce service time suppression for the game's top prospects. It has partially worked. But it has also created new strategic tensions.
PPI works as follows: if a team promotes a qualifying prospect (on two major preseason Top 100 lists, no prior extensions) by a specific deadline and keeps them in the majors all season, the team earns a compensatory draft pick if the player wins ROY, finishes top three for MVP, or top three for Cy Young before reaching arbitration. In 2026, the PPI deadline is April 9. PPI picks have ranged from No. 26 to No. 32 overall with values between roughly $2.8 million and $3.3 million in bonus pool.
The strategic tension: promoting before April 9 guarantees the player accumulates a full year of service time (assuming they stay up), which costs the team an extra year of control down the line. The team is trading long-term cost for the chance at a draft pick worth approximately $3 million. For a player likely to win ROY, the trade is obvious. For a player with a 15% ROY probability, it is a genuine organizational calculus.
In 2026, the most visible PPI decisions involve Konnor Griffin (PIT) and Colt Emerson (SEA). Both are PPI-High in the model. Both are in Triple-A as of Opening Day. Both face the April 9 clock. Pittsburgh is also weighing a long-term extension for Griffin, which, if signed before debut, would eliminate PPI eligibility entirely. The timing of that extension is itself a PPI variable.
Organizational behavior is not random. There are reliable signals that indicate a promotion is imminent or that suppression will continue. Tracking these signals between model runs is how the weekly update process adds value between formal recalculations.
| Signal | What it usually means | Model implication |
|---|---|---|
| 40-man roster addition | Player added to the 40-man, even if staying in minors | Removes a roster construction barrier; CUP moves up materially |
| MLB starter goes on IL | Positional opening created at MLB level | Activates Pathway B; ECD window tightens to days, not weeks |
| Player not called up by April 9 | PPI window forfeited for PPI-High players | PPI multiplier drops to 1.0; CUP moves down for affected players |
| Extension signed before debut | PPI eligibility eliminated by CBA rules | PPI multiplier drops to 1.0; service time motivation also reduced |
| Manager comments on timeline | Org signaling the callup window they have in mind | Informs ECD range; Vogt's "May/June" for Bazzana is a direct input |
| Player optioned to specific affiliate | Signals the org wants them in games, not in limbo | Confirms developmental intent; ECD timing locks to that affiliate's schedule |
| MLB roster at positional limit | No room to call player up without a move | Suppresses CUP even for ready prospects; 40-man moves are the unlock |
The org coefficient does not operate in isolation. It interacts with positional base rates, which suppress certain positions (catchers, first basemen) regardless of organizational behavior. A catcher in an aggressive promotion org still faces a lower base rate than a shortstop in that same org. The MKDC model applies both factors multiplicatively: a catcher at Colorado gets the 1.02 org coefficient but also the C positional suppressor, which net out to a still-lower CUP than a shortstop in the same structural situation.
Samuel Basallo (BAL) was the clearest example in Sub-Batch A. The model scored him at 22% CUP, applying both the catcher base rate suppressor and the Orioles' 0.98 coefficient. He made the Opening Day roster anyway, which was a positive model outcome at 22% probability. The catcher suppressor is calibrated against the league-wide base rate of catchers getting called up relative to other positions, not against any individual catcher's situation.