Charlie Mulgrew doesn't think Brendan Rodgers is 'completely satisfied' with Celtic duo Liam Scales and Auston Trusty.
The latter was brought in last summer for £6 million from Sheffield United.
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Although Trusty soon got a run of games under his belt, towards the end of the campaign, he lost his place in the team to Scales, the man he was initially bought to displace.
Mulgrew, therefore, believes Rodgers isn't entirely convinced by either: "I get the feeling that he's not completely satisfied with Trusty or Scales," said the ex-Celtic utility man [RecordSport].
"But then it can change.
"I really like Scales. Trusty's shown he can be a good player as well. They'll come back this pre-season and they might just hit the ground running.
"The way football works, they could be the main centre-back next year. Football's a mad game.
"It happened to myself. The year I got Player of the Year, I came back and I wasn't in the team for the first two games.
"Then I played the majority at centre-back and got Player of the Year in Scotland. Anything can happen.
"I'm sure Brendan Rodgers will be assessing that and seeing who's the best fit to play.
"That's the good thing about Brendan Rodgers, he's always keeping people on their toes by knowing if they don't perform, they'll be replaced.
"As a player, you want to be kept on your toes and not be resting your laurels."
