2 comments to make here.
Firstly, the 3-5-2 formation would be fun to watch, and Napoli used it to some success last year, so isn't completely off the wall.
Secondly, in every single formation I've seen over the past two years has always tried to put Yaya in the Barry role. The problems I see with are that Yaya can't play there, he hasn't played there and probably won't play there. Barry was a near ever present last season, and for good reason. He's not a fashionable player but he is indispensable to our team.
Yaya was arguably our best player last year outside of Tevez, and you all want to move him. This seems a bit dumb, you don't move your best player in to a different role, which he can't play anyway.