I think that the point of the question has been lost here, which is considering Warnocks alleged behaviour, should we give him another chance at Villa or get rid of him. Whether, given another chance, he is good enough or not is not the question (though the length of the thread and divided opinion suggests that it is a pertinent one).
My answer, therefore, is that every player deserves a second chance, and if the rumours are true it is out of character. He should therefore be given another chance to prove himself at Villa. If he isn't good enough, well that is a different matter. We really need two left backs and for me, Warnock should be one of them. He is experienced and, by all accounts, a very good professional. Good to have at the club and in the squad at least.