The ex-Liverpool player has been excelling at the Scottish giants over the past couple of years.
The appointment of Michael Beale as Rangers boss means that he is likely to hold onto Kent.
"They are two players that I've worked well with previously," he said of Kent and Alfredo Morelos' futures during a press conference.
"When I was here previously they were both excellent in different ways.
"In Alfredo, in terms of the goals he scored, and Ryan in terms of the way he entertained people and got on the ball and took the game to the opponent. I think they're capable of more than they're showing right now, that's fair to say, but they'll have their own reasons for that and they'll be working away at that.
"I trust both players and we've played this out as a club before with Connor Goldson and his contract situation. Sometimes a player wants to see and take their time, there's no problem, it's fine.
“I think the option is both ways with the players, the cards aren't in Ryan and Alfredo's hands. We also want to create a stronger Rangers going forward, with or without those players. Ideally with them."