Carlton caretaker Josh Fraser says he is not ready to assume the full responsibilities of an AFL senior coach, ruling himself out of the race for the Blues' top job.

Fraser replaced the departed Michael Voss, who handed in his resignation earlier this week, and will lead Carlton this week against the Western Bulldogs.

"I'm ambitious and I want to be a senior coach at some point, I guess," Fraser said.

"As we stand here right now, I probably don't think I'm quite ready, but what this opportunity does give me is a chance to jump in the driver's seat, learn a lot about myself, and hopefully at the end of it be better placed.

"I think right now I'm focused on how we collectively move this club forward. This is not my job. I'm an interim coach, but I've got a job to do, and that is help the club over the next 14 weeks be better placed."

The former Pie and Sun has bounced around the coaching ranks since 2014 after a 13-year playing career, and was previously at Ikon Park as the reserves coach.

Fraser returned to Collingwood as the VFL head coach, and spent the past three seasons at the Pues before joining Voss and the new-look Blues.

"I'm ambitious. I believe I could do it and I think there's a lot of capable coaches out there that could do it," Fraser said.

"I'm also realistic around this, sometimes you need an opportunity to get in front of a club and do it. My thing has been to continue to develop myself the whole way through and if an opportunity came up to present for a job, be ready to do that.

"That's the space I'm in at the moment. I think having coached your own side, that sets you up better than anything else to be a senior coach."

Fraser didn't take long to put a stamp on the club, rewarding NGA graduate and 2025 draftee Jack Ison with an AFL debut against the Western Bulldogs.

Ison, taken with Pick 47 last year, replaces the injured Adam Saad.

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