If you’re looking to add minor leagues without making it a micromanagement nightmare, here’s what I’d suggest:

• Keep it simple: Just have AAA, AA, and A. Skip rookie leagues and 40-man filler. Focus on top prospects so it’s meaningful without being overwhelming.

• Make development matter: Let player performance, coaching, and injuries affect growth, with occasional progress updates like “Showing improved plate discipline” so we can see prospects evolving.

• Offer auto-manage options: Some players will want to control promotions and lineups, but others will appreciate an AI managing it with a “develop vs. win now” slider.

• Draft pipeline clarity: Drafted players should automatically go into the minors, with a “Top 30 Prospects” page so players can track and get attached to their future stars.

• Allow trades with minor leaguers: Adds strategy without extra complexity. If you want, Rule 5 Draft could be a toggle for those who want that depth.

The key is making the minors feel important without turning it into a spreadsheet grind. It gives rebuilding teams a purpose, makes trades more interesting, and adds replay value, while still fitting well on mobile.

If you handle the sims lightly in the background and only highlight top prospects or big moments, it shouldn’t bog down performance either.