Beginning Friday 1/9/2026, leagues will be able to choose between two player development systems: Classic Development (system you already know) or Modern Development (brand spanking new dev system).
What’s Different in Modern Development?
Your players will reach their potential. In Classic Dev, about 12% of elite prospects bust — they never hit their ceiling despite great ratings. In Modern Dev, that drops to 0%.
Your draft picks pay off faster. Players develop along a predictable curve and will tend to reach peak younger, stay there longer, depending on league settings (see below). Draftees in Modern Dev contributes years earlier than the same player in Classic.
Your league controls the settings. Peak years (4-8), Variability (High/Medium/Low) — you decide how long primes last and how predictable careers are.
For those that were around before changes to player development in 2022 – player careers in leagues with 8 year peaks may feel similar to old system with Full Development and Drills.
What Should Your League Do?
Discuss it with your league. Classic Dev can be thought off as realistic but chaotic. Modern Dev is more predictable and plannable. Both are fully supported — pick what fits your league’s style, and if you choose to make the switch, do it on your timeline.
If your league switches, expect one particularly weird offseason as players “snap” to their new curves. After that, things smooth out.
The Details
How Modern Dev Works
What’s Still There
Players still have internal, hidden tendencies: how many years at peak, when decline starts, how those timings vary across ratings. That complexity isn’t going away.
What’s Changing
We’re reducing the number of those variables and changing how they’re used. Instead of recalculating development year-by-year (where each year is another chance for something to go wrong), the system now builds an expected career arc from those tendencies — and players develop much more closely along that arc than in the past.
Think of it this way: in Classic Dev, every year is a dice roll that can knock a player off course. More variables, more rolls, more chances to bust. In Modern Dev, those same tendencies define a curve, and the player stays near it. There are far fewer opportunities for a career to go sideways.
Volatility can move ratings a point or two above or below the line, but players don’t drift permanently off course. And yes — players can now temporarily exceed their potentials. That 75-potential guy might flash 76 or 77 for a season before settling back down.
The Bust Problem – Solved
In Classic Dev, 12.6% of players with 95+ potential never hit peak. In Modern Dev, that drops to 0%. The question shifts from “will he get there?” to “how long will he stay there?”
Additional League Settings for Modern Dev
Leagues using Modern Dev have new options to customize how it plays:
Peak Years (4-8)
How long do ratings stay at their ceiling? Some leagues want longer primes; others want faster turnover. This setting has a big impact on draft value: more peak years means your drafted players get into games younger and contribute longer. A prospect in an 8-year peak league will be useful years before the same player in Classic Dev — and stay useful longer.
Variability (High / Medium / Low)
Exactly how much can players deviate from the expected curve in Modern Dev? Higher variability means more surprises — some players will significantly outperform or underperform expectations. Lower variability means more predictable careers, with even the best or worse rolls on hidden ratings won’t drastically change the path to a players potentials.
Why Are These Settings Only for Modern Dev?
Classic Dev and Modern Dev aren’t just different settings — they’re fundamentally different systems under the hood. Classic Dev will continue to work exactly as it always has for leagues that wish to continue with the current system.
Ratings Peak Timing Narrowed
In both development systems, each rating peaks independently, but the spread on those ages is bigger in Classic Dev – power might peak years before contact, while speed peaked years ago. A player might “peak” for 5 years in each rating but never have a season where everything comes together.
Modern Dev pulls those windows closer. When a player is in his prime, he’s in his prime across the board.
Position Changes
In Modern Dev, position changes reset you to a percentage below the expected curve at the new position — then you catch up over five years:
- Year 1: -15% → Year 2: -10% → Year 3: -7.5% → Year 4: -5% → Year 5: -2.5% → Normal
A SS converting to 1B might see an immediate boost — the 1B curve is higher, even after the penalty.
Important: If you change a player’s position again before the adjustment completes, the clock restarts — and the “converting from” position stays as the original. For example, if you move a SS to 1B, then change your mind and move him to LF before he’s fully adjusted, he becomes “LF converting from SS” starting back at -15%. Commit to your conversions.
What Does This Mean for You?
If Your League Sticks with Classic Dev
Nothing changes. Development works exactly as it always has.
If Your League Goes Modern Dev
- Your prospects will reach their potential. The question shifts from “will he hit his ceiling?” to “how long will he stay there?”
- Draft picks pay off faster. Players reach potential younger, so your prospects contribute sooner — not years down the road.
Making the Switch: What to Expect
Expect a one-time very weird adjustment for existing players, as every player “snaps” to their expected curve. Some will not change much, but players who were developing poorly or older players that had drifted far from expectations might see big jumps — up or down. It’s not a bug; it’s a one-time recalibration.
To soften the transition: Start with the 4-year peak setting and work up. Shorter peaks mean smaller gaps, less dramatic snapping. Expect one weird offseason, then things smooth out.
Minimizing the Weirdness
If your league wants to soften this transition, consider starting with the 4-year peak setting and working your way up over time. A shorter peak window means smaller gaps between where players are and where the system expects them to be — so the “snap” will be less dramatic. Once your league adjusts, you can vote to increase peak years if you want longer primes.
Either way, expect one weird offseason. After that, things smooth out.
Classic Dev vs. Modern Dev: Summary
| Attribute | Classic Dev | Modern Dev | Why It Matters |
|---|---|---|---|
| Core Model | Year-by-year calculation. Each year builds on the last. | Ratings orbit an expected curve based on age and potentials. | Modern Dev eliminates snowballing bad luck. Classic Dev preserves high variance. |
| Players Who Never Hit Potential | Common | Very rare | Modern Dev: fewer busts, but draft strategy still matters. |
| Peak Years | ~5 years average | 4-8 years (league setting) | Modern Dev leagues choose how long primes last. |
| Variability | High — outcomes compound over time | Controlled — league chooses High / Medium / Low | Modern Dev gives leagues control over how wild careers get. |
| Development Shape | Mostly linear | Non-linear (matches rating scale) | Modern Dev: 90→95 is harder than 60→65, as it should be. |
| Peak Timing Across Ratings | Wide range (ages 23-34 for different skills) | Narrower range | Modern Dev: players have a clearer “window” for their prime. |
| Position Changes | Flat penalty, then development continues. Compounds if already behind. | Reset to % below new position’s curve. Catch up over 5 years: -15% → -10% → -7.5% → -5% → -2.5% → normal. | Modern Dev: predictable timeline, no double-punishment. SS→1B may see immediate boost. |
Which Should Your League Choose?
| Choose Classic Dev if… | Choose Modern Dev if… |
|---|---|
| You like busts, surprises, and “anything can happen | You want predictable careers you can plan around |
| You enjoy not knowing how a player will turn out | You’re tired of prospects flaming out for no reason |
| Your league is good with player development as is | You want quicker payoffs and less waiting |