Lol.
I think a more reasonable reason assessment, based on the game film, is that drive killing dropped passes, and untimely sacks, poorly run routes, bad scheme, questionable playcalling, superior defenses, no Bozeman or TMJ, no Foreman, shortened off season, and Matt fugging Rhule are more likely reasons. But hey, people like blaming QBs, especially a headbutting jackass like Mayfield.