I went off Spartacus last year, a bit because he was too strong (but not much, the attack on the Mur was the best bit of 2010), but because of the Tour LBLish stage nonsense.
He should leave Leopard-Meh and go to a DS who respects him as one of the world's best and ride for himself and not waste time looking out for riders who will not take the pain as often as is needed to be as good as he is.
PS 4th in the RR, he is far from finished. He has just got bored of winning TTs. Maybe 2011 was his lose weight and suck for a year season, like Wiggo last year. If he comes back next year as strong as Wiggo did this year, then Gilbert needs to look out.