Wonder if his issues are down to an undiagnosed mental health condition. ADHD could explain a lot of what is going on, for example, and it can often go undiagnosed. Might be worth a look for the Bills to see if there is an underlying issue that can be treatable. If so, he may be salvageable, and at this point they should be looking at anything that might make him salvageable.
Alternatively, he could just be a tit. So I would accept a couple of Freddos and a pack of Polo mints.