How is he going to play in a 4-3-3 with 2 advanced midfielders ahead of him, when he is a box-to-box and is a greater threat near the goal? He is arguably the best B2B midfielder in the world, so that is the role in which we should play him as. Just because he is extremely good defensively that doesn't mean that a restricted CDM/holding position is his role. It is someone like Carrick or Busquets who would fit that well, not Vidal.
Who said anything about two advanced midfielders ahead of him?
It'd be more like:
DDG
Rafael - Hummels - Evans - Shaw
Vidal - Herrera
Di Maria - Mata - Januzaj
Van Persie
Rafael - Hummels - Evans - Shaw
Vidal - Herrera
Di Maria - Mata - Januzaj
Van Persie