RB: Antonio Valencia (£17 million from Wigan Athletic)
Another player who's improved massively since Sir Alex's retirement, Valencia has gone from being Ronaldo's intended heir to one of the best right-backs in England, if not Europe, right now.
It might not exactly be the career path he would have envisioned when he joined United from Wigan in 2009, but Valencia can be proud of the player he's become under Mourinho and van Gaal.
United have actually been linked with a few right backs during Mourinho's time in charge, including Nelson Semedo and Serge Aurier. Both were intended to be long-term replacements for the Ecuadorian, who is 32 years old.
But for the moment, United will be more than happy to have the battle-hardened veteran guarding their right flank.