Marsh, who played over 200 games for the Loftus Road side, thinks that it is too soon to make changes.
He told BBC Radio Five Live: "If you look at any successful team it is always based on continuity and consistency.
"Yes, they have gone 11 games without a win, but I hate it when owners keep on sacking their managers after a run of bad results.
"That can't be good for anybody within the football club. I believe in continuity and consistency."
Hughes believes that he has the backing of the club's owners, despite QPR being without a win this season.