Wenger seems to want to play with 2 CMs and an AM anyway. He doesn't shoehorn them in, really. He plays Arteta as a pivote and Ramsey as an all-action CM. The problem is the AM position more than anything. Rozza is a backup, Caz is better on the wings, and Wilshere is and should be a CM. Don't really understand T's breakdown, think it's more like this:
AM: _____/Rosicky/Cazorla
CM1: Ramsey/Wilshere/_______
CM2: Arteta/_________/Ramsey
Things change if we sign forwards that would push Santi back into the center. Ox should really only play wide. L. Bender could fill both CM gaps, and we need an AM even if Santi ends up starting there. Rozza can't be his only backup and Wilshere needs to stay deeper to get the best out of him right now.
In fact, Wilshere's role in the 1st eleven isn't really obvious to me at this point. We need a forward to be sure, but we're not going to do ourselves any favors if we fail to bring in 2 midfielders and a right back. Not sure why we seem to be wasting time on Julius Cesar.
We're never going to do the business we really need to do. Depressing.