I think he might be on the spectrum. He’s exceptionally intelligent, an actual, not figurative, genius. He seems like he might be one of those genius type people that struggle with human relations. Rain man only totally functional.
Hes quirky. He may have been believed to have issues relating and leading other human beings or something.
But the size, strength, HOF arm talent falling to the 2nd round has to have some plausible explanation.
Being a genius doesn’t necessarily help one become a good Fb player though. Fitz magic is a genius and his main issue was playing stupid with turnovers.