First, he doesn't ask one question and then go back. Look at the time clock. There's 8:05 left when Mariucci erases the play. He asks the stupid question, then a legit one, and then there's a cut. Then he asks Geno to go back to the board and draw it up again. The time flashes. Four minutes has passed. We saw one good question and one stupid one and nowhere near 4 minutes had passed. Some stuff is missing there.
IMHO in this kind of thing forgetting everything would be bad, remembering everything would be insanely good, and remembering the shape of the play but forgetting details is OK. He had a chance to knock it out of the park and didn't, but how often is a kid asked to remember a play for four minutes told to him in slightly unfamiliar terminology, while having conversations and then run it or write it down four minutes later.
Its an open book test, these kids know whats coming. That is the main reason you want to see these guys be able to spit that kind of stuff back, they should be ready for it. Its not as if Mooch was talking to you or I and caught one of us completely off guard.
Before you die Lonestar, there is something you should know... I am your father's brother's nephew's cousin's former roomate.