The coaches this is for are mostly volunteers. A parent who said yes at the AGM and now has fourteen children waiting on a wet pitch. They are not short of enthusiasm; they are short of a plan, and they are certainly short of time to learn a piece of enterprise software.
The bar we set ourselves came from a conversation with a technical director who put it like this: “I’ve got 12 players, want to do an attacking session, attack with width — what you got for me.” If that sentence, spoken out loud on the drive to training, doesn’t produce a usable session, the product has failed.
The same product then has to keep being useful to a UEFA-licensed academy coach running a four-phase season, because clubs contain both people and nobody wants two systems. That is the whole design problem: one product, five levels of coach, and an assistant that knows which one it is talking to.