That is the view of former Reds striker Andy Ritchie, who believes Sir Alex Ferguson's men can cope without their injured talisman.
Ronaldo is recovering from an ankle injury expected to keep him out until October.
Real Madrid's continued circling of the Portuguese winger has also cast doubts on his long-term future, but Ritchie is keen to point out that the Reds have plenty of attacking options, even with Ronaldo sidelined.
And he believes the 22-year-old's absence will give Wayne Rooney and Carlos Tevez a chance to take centre stage.
Ritchie said: "United have some great players. I think they've almost sorted the deal out now with Tevez and I think we'll see an even better season out of him.
"And if Rooney gets the number of goals he should be getting, and if they get another striker in, then they've got a very potent front line."
Ritchie acknowledges that the absence of Ronaldo, who struck 42 goals last season, will be a blow but with Rooney scoring 18 times last season and Tevez hitting 19, United can certainly claim to have other sources of goals to tap into.
Rooney's tally came despite the fact that he often played out of position to help balance the team for Ferguson. Ritchie said: "Wayne is an unselfish player. And to a certain extent, I think Tevez is as well.
"They do a lot of running. I think Tevez was cited as doing 7km in one game last season, which is a lot for a striker.
"And Wayne has played in numerous positions - wide right, wide left - he was in the left-back spot in the Champions League final at one stage making tackles on the edge of his own box.
"You know he can do that, and it sometimes takes a little bit of the attacking flair away from him.
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"I've got a feeling he might play a little bit more advanced this season and we'll see more goals from him.
"I certainly think he'll be one to watch, and I think Tevez will score more as well, now that he's settled."
Ritchie hopes that Ronaldo's enforced absence will at least take a little sting out of the `will-he-won't-he-stay' saga.
New Chelsea boss Luiz Felipe Scolari was recently forced to deny reports that he had advised Ronaldo to join Real when the two were together with Portugal at Euro 2008.
Ritchie is not happy with the way that outside forces have unsettled the player over the summer. He said: "United had a fantastic season - I was totally made up for them. It was a fantastic achievement.
"I just think this Ronaldo thing has put a bit of a blemish on it, and overshadowed it a little bit. It shouldn't have done. It should have been a full close-season celebration."
Ritchie himself is taking a break from football after leaving the manager's job at side Huddersfield in April.
For now, he is happy combining media work for Sky and BBC Radio with a few relaxing games of golf.
He said: "I'm taking a rest from the game and I'm enjoying it.
"I've enjoyed not having to work out pre-season training and think about agents phoning me every two minutes."
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