Sir Alex Ferguson secured the signature of Japanese playmaker Shinji Kagawa in 2012, and expected the former Borussia Dortmund man to make an immediate impact at Old Trafford.
Two years later, however, Kagawa is still trying to find his feet in England's elite division. Unfortunately, the playmaker just hasn't been able to discover his fine form that lit up the Bundesliga.
Ferguson and Moyes
Sir Alex Ferguson's and David Moyes' United reigns certainly differ - in-fact they couldn't be any more different. However, the two managers did have one very similar problem: how to get the best out of Kagawa.
Both Ferguson and Moyes failed to get the best out of the exceptionally talented individual. In his debut season - under Sir Alex - Kagawa struggled to keep his place in the side, and was limited to opportunities. Adapting to the English game was certainly proving tough for the playmaker. His performance against Norwich City at Old Trafford, however, was a standout: a sublime hat-trick proved the class and craft that he possesses.
But sadly, United fans have not seen this type of form on a regular basis over the last couple of years. As Kagawa vowed to improve last season, may will argue that he decline further during the Moyes era.
Of course, it didn't help that his teammates around were struggling too, but Kagawa once again looked out of sorts.
So, as United enter yet another new era under Van Gaal, will Kagawa finally announce himself in the Premier League. Unfortunately, this seems unlikely.
Van Gaal may well shake things up at the Theatre of Dreams, and he may well start the new Premier League season with a complete change in formation, but that doesn't necessarily mean there will be a place for Kagawa.
United fans would love to see him find his best form, but he stands no chance of regular football with the players that surround him. As well as Kagawa, Juan Mata, Wayne Rooney and Adnan Januzaj will be looking to play in that No.10 role next season.
Rooney, of course, looks set to play in attack, with Mata behind him for the most part, but there will be times when Van Gaal wants to give Javier Hernandez or Danny Welbeck a run in the team. Do you think Van Gaal will drop Rooney?
It's likely that Mata will be benched and Rooney will slot into the No.10 role. Januzaj, on the other hand, will be looking to make an impression once again next term, so where does that leave Kagawa?
He certainly won't be trusted in the wing-back position, so there's only really one position he can take up...It's time for Kagawa to move on: it's never taken off for him at Old Trafford, and it probably never will.
A £17 million move away from Old Trafford has been tipped for Kagawa, and it's a deal that makes sense for both player and club.