Was Naz even going to class?

So, if a guy goes into his one semester planning on being a one&done and convinced he's a 1st-round lock, I'd imagine he's not too worried about grades... as the season/ semester unfolds, and his stock may fall, or he gets a bad evaluation post-season, do you think that there's been players who change their mind and would like to stay another year to improve their stock, but can't because they've tanked it in the classroom?

Just wondering if this ever plays out as a possible scenario...