Fact is...Barry is under contract with Villa for 2 more years and hasn't formally requested a transfer (as I understand). So what's he b*tching about? Put up or shut up Barry, if you want to leave then put in the request.
I think Villa will do fine without him. Where MON finds a genuine replacement from I don't know but they are out there. Barry was good but not great, I think a more creative central midfielder could be an improvement for Villa...