Holgate stepped into the team for the first three Premier League games after injury to Coleman ruled him out but the Irishman was back against Sunderland in the 3-0 win last Monday.
He said, though, that Holgate looked as though he’d played 50 Premier League games, not three, and that he can be proud of his performances.
“The team were brilliant from week one,” said Coleman.
“Looking from the sidelines it looked like Mason had played 50 Premier League games for Everton already.
“To be honest, coming into the Sunderland game, if Mason had have started the game I couldn’t have had any problems.
“I was unfortunate to get injured and he stepped in and he’s done absolutely nothing wrong.
“It’ll stand him in good stead for his future and he’ll keep everyone on their toes.
“He’ll keep me on my toes and make sure I have to perform week in, week out.”