A Tour stage over the cobbles is very different from a spring cobbled classic.
He's on the right team to learn, but to think he's going to rock up and be challenging is somewhat naive I think. Boonen, Terpstra and Stybar will, rightly, be seeking leadership roles.
Really excellent news - I remember reading ages a go that he wasn't a fan of the classics, last year's Cambrai stage clearly changed his mind :)