Here's what I've come up with:
For the false 9 role I dunno who else you could play there. It needs to be someone good with the ball who can also defend. Rooney is the only who came to mind. Fellaini would function well as a CB, I've already commented on how I think he could be a Libero, although he's not as good on the ball for the role, he could work as a sort of target man up top as well. Thought Pirlo would work well here, but figured that if I used him with Rooney the defense would be too exposed and that with Fellaini it made more sense to use a roaming No. 10.
Vertonghen and Ivanovic were my CB choices because they can also play as fullbacks and are good on the ball. Chiellini, Hummels, David Luiz, Pique, Puyol and lots of others, especially those used to a 3-man defense, would work well too.
At wingback I couldn't think of the perfect player they need the energy and industry of wingback but be good coming inside. Best that came to mind were Alba and Milner. Others I thought about were Maggio, Lichtensteiner, Asamoah, Bale, Kolarov, Filipe Luis, but the former two are probably the best out of those guys at coming inside. Lahm would work well, too.
In midfield good runners so Yaya, Marchisio and Vidal were my choices. Lots of others would work too: Ramires, Benders, Khedira, Fernandinho, Schweinsteiger and any good MC, although I went with players who are good at popping up in the box mostly. Martinez gave the most secure feeling as someone who is good in midfield but who can also fill in at CB when needed.
Ribery and Bale to start inside and move wide, actually had a hard time thinking of a great player who does this. Sure, Ozil and the likes move to the flanks, but they create overloads and combinations, they do not move wide to stay wide on their own. If playing an AMC then Gotze, Ozil, Cazorla, Mata, Hazard, Muller, basically guys who move around the create overloads seems like the best choice.
Didn't think keeper would be relevant but I'm sure someone like Arnau would have someone specific in mind for this.
Thoughts?