I think you may have something there. Froome had already cracked once. On his own he might have got in to a ding-dong with Nibbles and might then have found himself being overhauled by Wiggins - or not.I ask this as a genuine question of people who have more experience of interpreting pro racing than me. A lot of the comments talk about Wiggins having cracked, or been dropped, or not being able to respond. But it seems to me he has a different style of climbing, where he doesn't accelerate in spurts but just turns his pace up a notch. Suppose Froome had been allowed to go rather than waiting for Wiggins. Is it actually the given that many people are assuming that he'd have taken serious time out of Wiggins - or could Wiggins just have carried on grinding up, a bit faster still, and caught him after a while when he tired? And do we know how close to his limit Wiggins was working? It seems to me nothing happened on yesterday's stage that required him to give his absolute maximum, and with the knowledge of the stages still to come, would it make sense for him to have been keeping something in reserve?
The main point is that the effect of Froome's breakaway might have been to reduce Wiggins' lead without offering Froome any significant advantage in relation to Nibali
Froome may yet prove to be Kloden Mk.2. Always second. It's one thing to have the ability to break on a moderate climb, but it's another entirely to plot your way through three weeks with the intention of winning. Kloden, who was a remarkable bike rider, never looked like a winner.