"I fully expect it to work. With Jose leaving Chelsea and now coming back into the Premier League with United, for me it is a great move," Beckham told Sky Sports.
"We have had quite a lot of change over the last few years. So now with Jose in there...he knows how to win titles."
The former Chelsea manager has already begun rebuilding at United, having signed defender Eric Bailly, midfielder Henrikh Mkhitaryan and striker Zlatan Ibrahimovic and, according to media reports, is keen on adding Juventus midfielder Paul Pogba.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
Beckham is hoping Mourinho will help United regain the fear factor the club had under Ferguson.
"Man United definitely need ... to get back to being feared again," the former England captain said.
"Because we were always a club -- and are still a club -- that when teams come to Old Trafford, they know they are going to be up against it and they know they are probably going to lose."
Mourinho will mark his return to the Premier League when he takes United to Bournemouth for their first game of the season on Aug. 14.
(Reporting by Shravanth Vijayakumar in Bengaluru; Editing by Tony Jimenez)
