It was last year's Vuelta he was meant to lead, but then he had a bad crash with a tanker in stage 4, and as a result lost time in the early mountain stages. He got 2 2nds and a 3rd I think, including one in a high mountain stage, behind Cunego and before the heads of state. I don't think they expected him to fight for GC though; stagehunting was a plan for once he'd dropped out of contention - especially as everybody knew the Schlecks were going to clear off for Worlds prep. Remember that not every team leader has to go for GC.
At the Giro this year Chris Anker Sørensen was meant to be the leader, but again they weren't expecting a big GC performance; stagehunting and taking the win on Monte Terminillo was as good as they expected, and after that he was sacrificing himself for Porte.