The veteran Dutchman enjoyed a successful first year at the Allianz Arena last season, winning the Bundesliga and DFB-Pokal double and guiding Bayern to the Champions League final but this campaign has not been as successful.

The Bavarian giants are currently seventh in the Bundesliga, 10 points behind leaders Borussia Dortmund although their recent form has been encouraging.

That, however, has not stopped Hoeness from questioning the methods used by Van Gaal.

In an interview with Sky90, Hoeness said: "It's very difficult to have a conversation with Louis van Gaal.

"He can't accept it when someone has a different opinion to him. However, you can't run a club all by yourself these days."

Hoeness also questioned why the likes of Mario Gomez, Anatoliy Tymoschuk and Martin Demichelis had not played a bigger role this season after all three scored in Friday's 4-2 win over Freiburg.

He added: "I'm watching the game from the stands and I see three players scoring who should have left the club long ago according to Louis.

"These players are still very useful though. Take Tymoschuk for example; he was the best man on the pitch after the break.

"There are four or five players around who have been deemed surplus to requirements, but still add something to the team. We need to keep all our players satisfied if we are to be successful.

"Louis is a very strict person. He gives you the feeling that he thinks you're a good guy, but he's having his way nonetheless.

"He deals with some very experienced players at Bayern and he should be a bit more cautious."