The striker has moved to Barcelona on a season-long loan from the Red Devils and he feels that the club has not had a clear plan since the retirement of their legendary manager in 2013.
Rashford told The Rest is Football podcast: "When Ferguson was in charge, not only were there principles for the first team but they were for the whole academy.
"So you could pick players from 15 years, a full generation, and they'd all understand the principles of playing the Manchester United way."
United have hired seven permanent managers since Ferguson retired and Rashford believes that the constant turnover on the touchline has left the club in "no man's land".
The England international said: "People say we've been in a transition for years. To be in a transition, you have to start the transition. So it's like the actual transition's not started yet.
"You see it with any team that's been successful over a period of time - they have principles that any coach that comes in, any player that comes in, has to align to these principles or be able to add to these principles.
"Whereas at times I feel like United have just been ... We're hungry to win, so we'll always try to adapt and to sign players that fit this system. But it's reactionary."
Rashford believes that United must settle on a clear strategy if they are to stand any chance of winning the Premier League title for the first time since 2013.
He said: "If your direction's always changing, you can't expect to be able to win the league. Yeah, you might win some cup tournaments, but it's because you do have a good coach and you do have good players and you have match winners in your team - you're not there by accident.
"I feel like we've had that many different managers and different ideas and different strategies in order to win. You end up in the middle of... You end up in no man's land."