Since Mourinho’s arrival at the club, Rashford has failed to nail down a starting spot at Manchester United.
The has also often been used on the wing whenever he plays.
Wright noted he wants to see the 20-year-old back in a striking position, which means he will probably have to leave his boyhood club.
“I think that Rashford, especially when he burst onto the scene, we saw flashes of a striker that can go into the space and he can link up, and he can finish,” Wright said on BBC Radio 5 Live.
“Now, what has happened to him since he’s been at United on the left or the right, wherever they play him, he’s played everywhere apart from up front learning his trade.
“He’s got pace, he’s got skill, he’s got finishing ability. He’s been playing in roles that have taken the edge of those sides of his game
“Rashford’s got massive, massive, decisions to make in the next year, 18 months for me.
“He’s either got to leave Manchester United and play, and play in a position where he’s going to start to be that player we all thought he was going to be when he burst onto the scene, scoring goals left, right and centre every competition he has played in or he’s going to have to stay there, whether it’s Mourinho or whoever it is, and maybe playing on the left, maybe playing on the right, maybe playing up front.”
Wright added that England coach, Gareth Southgate would want Rashford to leave United.
“I think Gareth Southgate wants him to play, he wants him to play somewhere,” Wright added.
“I wouldn’t want to sit here and say Gareth wants him to (leave United).
“I don’t know that, but the fact is you can’t tell me that Gareth, knowing that he only has Harry Kane as a main guy, Danny Welbeck is not starting for Arsenal, Jamie Vardy’s just retired.
“You can’t tell me that Gareth wouldn’t wouldn’t want someone like Marcus Rashford playing regularly.
“He would be absolutely desperate for that to be happening.”