Shinji Kagawa's sensational talent is not in doubt, but his production in the Premier League over the past two seasons is yet to justify the hype.
In two seasons at Borussia Dortmund he scored 29 goals for Jurgen Klopp's title winning side, but since joining Manchester United he has only six to his name - and not a single one has come this season.
Now much of that failure to adjust should come down to the player himself and poor management, particularly this season - but the real reason is that at United he does not really fit in.
As soon as the Red Devils signed Robin van Persie, it meant Wayne Rooney was destined to play in Kagawa's preferred position behind the forward, and the Japanese international has struggled to make it work ever since.
But there is one club he would have been far better off joining in summer 2012, who he was even linked to at the time, and that's Arsenal.
Kagawa would have filled the space in the side destined for Mesut Ozil a year later, and perhaps it would be he receiving the accolades as the missing piece in the club's jigsaw early into his time there.
His technical ability combined with his experience playing for a side in Dortmund whose style is similar to Arsenal, would have made the transition easier that his spell at Manchester United to date.
Currently his future is in limbo awaiting judgement from a new boss, but with Juan Mata also itching to play in the centre too, quite where he fits it is a real conundrum which needs to be solved.
Chances and benefits of a switch to Arsenal are now slim too with Ozil at the club, and Gooners may be pleased Arsene Wenger waited a year to sign the Real Madrid ace.
But had Kagawa made the move to The Emirates instead of Old Trafford, it's doubtful whether he would have struggled in the same way as he has at United, and may just have found a team ready to be built around him.