It's madness to sideline a serial winner and big game performer in lieu of an outsider, any outsider. One is a proven commodity that has literally won you the biggest prizes and always stands up to be counted, the other is a gamble until proven otherwise.
This reminds me of when we brought in Berbatov and overcooked the formula trying to make it all work with what was already the best attacking line in England, if not the world. Sure, he'll have his moments, but overall, does the team even need him?
Even Carlo might not be able to make this one work, and that's saying something.