Jose Mourinho has seemingly aimed a dig at rival Arsene Wenger over the legacy he will leave at Arsenal.
The pair have clashed on multiple occasions down the years with Wenger finally enjoying his first competitive win over Mourinho back in May.
Wenger is now in his 22nd season in north London, while Mourinho - often criticised for his short-term planning - is in just his second with Manchester United.
But the Portuguese points at the success of his former clubs since his departure, in particular Real Madrid, as an example of long-termism.
"I prepare clubs for success. I think I prepare clubs in a way where, when I leave, the new manager arrives at a top club. And that is not short-term even if you leave," he told the Times.
"If you're in a club one or two years - or any job - if you leave a structure to be even more successful without you than with you, that's not short-term. That's long-term."
Mourinho went on to suggest managers staying in the same job for the long haul could be detrimental for the club, in what appeared criticism of arch-rival Wenger.
"Short-term can be the guy that is at one club 10 to 20 years and when you leave the club, it's ready for failure," he added.
After winning two trophies in his first season, there have been suggestions Mourinho will sign a contract extension already.
And while he insists he is happy to wait until the end of his current deal to discuss his future, the United boss hopes to stay with the club for years to come.