Schleck's riding a good tour. He's not put himself up to be attacked, yet he's still within reach. He still needs to time it carefully...
I presume you mean Andy, rather than Frank, who shouldn't be counted out in his own right.
To be honest, Andy Schleck was perhaps a little too cute in his tactics last year, merely following Contador's wheel most of the time, and the one time he did try to attack, we had the dropped chain episode.
This year, with Frank still in the race, there is an opportunity to use tag team tactics and work Contador over, and given that Contador is carrying a knee injury and looked laboured on the Mur-de-Bretagne, the other GC contenders may feel inspired to be more aggressive as well.
In return, Contador needs to go on the attack early, in order to recover the deficit accrued in the first week, or to get a better idea of whether it's not his year in the TdF this year, and save himself for la Vuelta.
The other variable is Evans - he's been looking in good shape so far, but has he been able to improve his climbing to be better able to respond to the explosive attacks of the pure climbers?
The only thing that is certain is that the men will be sorted from the mountain goats today.