And a little FYI for those who haven't played or seen a WCO playbook.
You can be in a standard formation call Off-3s-Split Right-384 that is your formation, then from that formation it's not like a typical offense where you give the assignment, the assignment needs to be memorized. So after the QB states the formation he will say the routes, like this Off-3s-Split Right-384 Denver" but here is the catch there are usually about 6-10 routes for 5 receivers. So there could be Denver-Omaha-Drangon-Thunder-Smoke-Train...etc. So they receiver needs to first learn the formation which is pretty easy, then they must learn each assignment for up to 10 plays for each formation. They must memorize this, not as simple as calling a play like XYZ receivers which tell the reciever the route within the play call.
Yes, there are multiple routes that the receiver has to know, whats your point? I never said that don't have to remember anything. I said they don't have to remember every single combination of plays ever.
Has anyone ever studied for anything more than a spelling test? I fail to understand what's so hard about this. Obviously not everyone ever can grasp it completely, but not everyone graduates from high school or college either.