Now, former Red Devils defender Neville has named five players who could improve the Manchester United team ahead of next season - Gareth Bale, Philippe Coutinho, Eric Dier, Raphael Varane and Joao Cancelo.
Sanchez has failed to replicate the type of form he regularly showed at Arsenal, where he spent three-and-a-half years before making the switch to Old Trafford.
This led the 67-year-old to question the club's priorities, and he insisted that United legend Ferguson has also expressed concerns on the matter.
"The coach after me [Mourinho] changed to park-the-bus tactics and played on the counter", Van Gaal told the BBC.
He's since injected newfound optimism in the 20-time English champions, who spectacularly reached the Champions League quarter-finals at Paris Saint-Germain's expense, and ex-Red Devils player Strachan believes Solskjaer has made Mourinho feel somewhat antiquated but he can, of course, turn it around.
Watford haven't bagged a win across 11 away league visits to Manchester United, having lost nine and drawn two. Are we moving forward, are we standing still, and when we are talking about Manchester United finishing in the top four and it's time to celebrate, I am scratching my head.
Although the Old Trafford club were only one place lower in sixth when they sacked Mourinho, they were closer in terms of points to the relegation zone than they were the top of the table after a 3-1 defeat against leaders Liverpool.
Manchester United still have some issues to address, with problems in defence and a lack of pace on the wings when Martial is absent.
"So what he has brought in shows you there's more to football".
Solskjaer's men are now in the fifth position on the Premier League table this season with 58 points from 30 games.
There's an outside chance of winning a fourth European Cup but Barcelona, the favourites to lift the Champions League title in June, stand in their way. It is Manchester United. In his 24 games in charge of Manchester United this season, Mourinho's team scored 38 goals in 24 games, while conceding 35; Solskjaer's side, on the other hand, have scored 40 goals in 19 games while conceding just 17 goals.
"The players nowadays have that much power that they, were probably at the end of it glad to see the back of them".
"We all know this is possibly the most important appointment since Sir Alex left", Cole said.