Speaking ahead of United's 1-1 draw at home to Wolves on Saturday - Paul Pogba has already had his say as he urged United to "attack, attack, attack" at home - Mourinho said he is pleased with the overall development of his side.
"I am not the manager, I can not, like, say that, but obviously we should show more options of playing". Sanchez was unarguably one of the best players in the Premier League during his spell with the north London based outfit.
The Frenchman played for Man United on the weekend in their 1-1 draw with Wolves. The English global had been linked with a move away from Old Trafford in the wake of reports linking the Red Devils with a number of centre-backs in the summer.
"As far as Sanchez, I just think the slow build-up from Manchester United hurts him as much as anybody", Nicol said on ESPN FC.
'You have 90 minutes to show a different attitude and I think we have to do better'.
Pogba has drawn criticism for what have been perceived to be below-par performances following his key role in France's World Cup success, while Mourinho has denied a rift with the star midfielder.
However, Pogba believes Mourinho's cautious game plan was what hurted them most.
Mourinho is said to have informed Pogba that he needs to cut out the mistakes, adding to the growing tension between the pair.
"We didn't lose, but for me we should have won".
Since joining Manchester United in January, Sanchez has lost possession an incredible 347 times, with only four players in the Premier League losing it more, one of which is goalkeeper Ben Foster.
The visitors got the game off to a good start as Raul Jimenez tried David De Gea for the first time in the game but the Spaniard was well placed to save the ball.