I raised concerns about two months ago whether Wenger would be ruthless enough to get rid of good players and replace them with better ones.
In the midfield two positions we absolutely need to get rid of Flamini and Diaby (although it pains me a little regarding Diaby). Those are two spots, and at least one of them needs to be filled by top class player. That means that keeping Rosicky is not necessarily a bad move I guess.
I don't count Campbell, Podolski, Jenkinson and Sanogo since they are already out. Loans or sales MUST be on the cards for those players. Personally, I'd only bother with a loan for Jenkinson and sell the rest.
Now, it gets trickier. We are already fine when it comes to numbers in the forward 4 positions. Cazorla, Walcott, Wilshere (since that is where he seems to play now), Chambo, Welbeck, Giroud, Alexis, Özil. 8 players for 4 positions, which is pretty much ideal if everyone is to have a fighting chance of meaningful playing time. We absolutely, definitively need a worldie added to that bunch, but then one of the players mentioned probably needs to be sold. Who is that going to be? Is Wenger prepared to sell one of those guys?