Danny N was pretty strong last year on the hills, escorted AC up some serious climbs, and - as the poster above indicated - he was as far down the standing last year as this. So I expect they will be there. As for the Giro - AC was alone much of the climbs there as well - I thought it was odd but maybe even then his support riders were saving themselves.
In any case AC seems to have a lot of experience riding alone on the mountains. Or rather, that he can use riders from other teams and can shadow other contenders. Cadel and Andy block the wind as well as Danny N does, eh?
It's not ideal, I guess, but AC is pretty self-possessed and in command of his emotions. He'd be much better at going with minimal support than others.
I admit he has his "job of work" as P&P say, cut out for him, and I won't be surprised if I have to start rooting for Cadel at some point.