Quick answer
Player-production answer: generation, fusion, team offers/selling, and the boundary around values and formulas.
Use this page when you need the current production path, not a guessed value table. The checks below separate visible player actions from unverified formulas.
For Make Soccer Players generate players, separate creator vocabulary from verified mechanics: use the training/coach setup, observe generation, fusion, and team offers, and use the planner for your own progression decision.