If even Kevin De Bruyne is not safe from Pep Guardiola's relentless quest for perfection then God help every other player under his management.
It's a brilliant trait, of course. That drive and refusal to be satisfied are what has seen Manchester City enjoy so much success since Guardiola arrived at the club. He's still hungry for improvement, for more trophies, and that desire trickles down to his players.
Even De Bruyne, who scored a stunning 25-yard strike to ensure City got back to winning ways against Brighton and has by far the most assists in the Premier League this season was told he can still do more by the Blues boss. "He can be better. He's not playing at his top level, Kevin, not yet," Guardiola said.