TO is a great athlete, who will be able to produce. maybe not like his did 5 years ago, but he can still play. His play on the field, and even his behavior off of it, were never an issue. The problem with him boils down to personality disorders that impede his ability to acclimate into a normal societal format. He slowly ruins any chemistry that not only he has with his team mates, but also that which they have with each other.
He cannot help himself, he is a broken tool, it typically works great, but eventually, it ruins the project....