My knee-jerk reaction was to write-off the idea, then I considered it a little more...
If Nani were to return to United it could be a master stroke by Mourinho. He mentioned he wanted to forget the last three seasons and this is exactly a way of achieving it; by bringing in an Alex Ferguson player who has not been tainted by the Moyes or van Gaal tenures.
I haven't forgotten the many good games he had for United – on occasions he was exciting to watch and could be a match winner. In the two seasons in which he made most Premier League appearances, Nani had a record better than 1 goal in every 4 league games and good assist figures too. Since being given the same playing opportunity at Fenerbache he is back at that level.
I have heard some say 'let's bring back Anderson and Djemba-Djemba too' though the difference is those two players were perhaps not so talented or influential for United and are not currently showing good form. I have also heard the opinion that he is not a Mourinho type player but I disagree as I remember Nani would do a job tracking back to cover his full-back. Although it might not be the 'Galactico' some would like, Nani is certainly an upgrade on what we have - more skilled than Lingard and more consistent than Memphis.
I'm sure Nani would be thrilled to be back at United working under his countryman who would get the best from him. We need a right-winger, and at 29 years of age, with 230 appearances for United, nearly 100 Portugal caps, four Premier League titles and a Champions League medal, I think Nani would be a fantastic solution, a link to past glory days and a player the younger members of our squad would look up to.
Personally I haven't been sold on Mourinho, but if he makes this move I would be impressed.