#6 Andreas Pereira
Sure, this is not technically a new signing, considering Perreira has always been United's player but recalling the young Brazilian from his loan at Valencia seems to be a most sensible option at the moment.
In a midfield that cries out for some creativity when the flamboyant Paul Labile Pogba isn't around to provide it, Pereira would be a boon - his passing, vision and directness would be a welcome addition to a midfield that desperately needs it at times.
The only problem, Jose Mourinho didn't exactly like the manner in which he left -
"Andreas Pereira was a personal decision that I don't agree with," he said. "A decision I don't think honestly is the best decision for him, a decision that disappoints me a little bit, because I think he has the potential to be here fighting for a position, for opportunities, and fighting to be a Manchester United player. You have to be ready to fight for a position and I am a bit disappointed that he left."