I actually still rate him and often defended him in the past. I hope he moves to United, because van Gaal might be exactly the type of coach he needs at the moment, someone who gives him more direction and takes away some of the freedom he enjoys a bit too much at Dortmund. I also think that a new challenge might force him to focus again on the game. I hope he'll be a fantastic centerback for Germany next to Boateng for many years, because they're an excellent complementary pair.
However, he sure as hell doesn't deserve a lot of credit for his leadership after this season.