Given the bleak present and the liklihood of an even bleaker future (MRD, Sentinels, etc) can you see Catatonic Cyclops being the leader the X-Men need?
The only other possible option MIGHT be Storm, but Wolverine is a soldier. He'll make the tough calls "Slim" wouldn't dare make.
That's a decent explanation. Not sure I buy Xavier thinking in those terms, though. I see him as more of an idealist.
[spoilers] Charles is speaking to them from
the DoFP timeframe[/spoilers]
I can see his "idealism" being a bit blunted.