Now inside the final 18 months of his current deal, there's suggestions Guardiola will walk away from City at the end of this campaign.
"Some players will want him to leave, some will want him to stay, it depends whether you are in the team or not and that is the same for any manager," said Rooney on the latest episode of The Wayne Rooney Show.
"I hope he stays because he is brilliant for the Premier League and you want the best managers in the Premier League.
"He has set a benchmark over the past 10 years for everyone else."
Rooney added: "If Pep does go, they have to go and get Vincent Kompany.
"He knows the club, he has been successful with Bayern in a similar way. It looks like he has learned from Pep.
"Pep will probably choose the next manager. If he is going, he will probably be part of the process to choose the next one.
"I just think in terms of Pep, he looks at himself as a bit of a teacher and he has been at the club for 10 years, he will want to leave the club in a good place."