Manchester United legend Ryan Giggs says the club must sort out their long-term recruitment plan.
The Red Devils finished third in the Premier League and remain alive in the Europa League knockout stages.
But Ole Gunnar Solskjaer's side are still some way behind Liverpool and Manchester City, and Giggs thinks they need a sustained run of quality recruitment.
"[David] Moyes didn't last a season and the club recruitment was all over the place," United legend Giggs told the Daily Star "You had Sir Alex players, Moyes players, then [Louis] van Gaal, with a different philosophy and different players. Then you've got [Jose] Mourinho coming in with his group.
"So, you've got this mix of cultures but are they really United players? To get rid of that takes a long time. That's why the owners - and stability - is really important.
"For example, Klopp has been at Liverpool five seasons. Each year he's improved, but it took him time to get players that he didn't fancy out. It's not just about bringing them in."