United are in state of flux after an awful season that culminated with them finishing sixth in the Premier League and failing to secure Champions League football for next term.
Now, manager Ole Gunnar Solskjaer faces a huge summer own which he is set to overhaul his struggling squad and Ferguson is said to be concerned by how they are going about their business.
The former boss, who won 38 trophies for the club, took charge of a United legends team to face Bayern at Old Trafford in a match to celebrate their treble win in 1999.
And he took time to pay tribute to the German giants for the way they are run and says United should look to copy them.
“They’re a great club,” the Scotsman said.
“It’s a club run in the proper foundation of it. Former players who run it really, Uli Hoeness and Karl-Heinz Rummenigge.
“They run the club in the right way and they are always winning the league in Germany. They’re a great club.”
While United are at one of their lowest ebbs since Ferguson left in 2013, their former stars gave supporters a reason to cheer as they dismantled Bayern in a 5-0 win.
Boss Solskjaer opened the scoring before Dwight Yorke, Nicky Butt, Louis Saha and David Beckham all hit the back of the net.
Solskjaer said he was delighted to put on such a show but warned his current crop of players that the club’s legends should serve as reminder of the level they need to get to.
“It was great fun,” Solskjaer told MUTV. “You know, just to see the lads in the dressing room before and after, getting the banter going, was fantastic. This is a group of people who have meant so much to each other.
”I think everyone enjoyed it, of course, when you win the game.
“It was still competitive, we needed to win it and you could see a few tackles flying in.
“I think everyone was happy towards the end and to see everyone enjoying themselves is what this club is all about – playing football in front of unbelievable and amazing fans.
“I’ve got to thank the supporters again for supporting us and the money will be well spent.
“I think everyone knows how much it means to play for Manchester United and this match, for everyone, means so much more than just turning up because it was such a big part of our lives.
”We have a big job getting back to these moments. We want to have moments to celebrate and that’s what we’re trying to do.“