Test five-player groups and trade packages with a simple read: player value first, role balance second, observed lineup history when it exists.
Add five players for a direct lineup read, or add up to 15 and we will rank the best five-player combinations.
Add 5 more players to unlock the full fit read.
The lineup builder is a decision aid, not a promise. It helps separate player value, lineup balance, and real lineup evidence so the tradeoff is easier to see.
Start with each player's current win value. The model should not call a low-value group great just because it looks balanced.
Role balance can move the read, but only a little. It is a tiebreaker, not a magic chemistry score.
Observed lineup history is the reality check. If a group has not played together, treat the projection as a scouting estimate.