I might be being very dense here but who is JC?
Been racking my brains and can only assume you mean one of the following:-
Jimmy Connors - might do a decent job and would get on well with Abramovic since one knows their rackets and the other runs them.
James Cameron - the international status that they look for but it would be a Mata of time before his blue Pandorans get marginalised by the club captain for misheard insults.
Ex Smashing Pumpkins drummer Jimmy Chamberlain - they'd play to a decent rhythm but might fail a few drugs tests.
Julius Caesar - a pedigree of European conquests but a bit past it. He'd last less time than a Julian calendar.
Joe Calzaghe - would bring a winning mentality but the sendings off would increase as the players took to doing bouts instead of matches.