ADELAIDE captain Taylor Walker says he has no idea why Mitch McGovern wants a trade to a rival club.

And Walker has confirmed the departures of assistant coaches Josh Francou, after serving just one year of a three-year contract, and Tate Kaesler.

Walker will speak to McGovern to find out why he wants to break his contract with the Crows - he signed a three-year contract extension at the end of last season.

CROW WANTS OUT McGovern asks for a trade

"I don't know ... and that is something that I would like to find out," Walker told Triple M radio on Wednesday.

"It's disappointing that we lose a quality player and a quality fella.

"I do take it personally but I have learnt in my 11 years (in the AFL system) that it's just the caper we're in."

McGovern has been linked with a move to Carlton but Walker described that prospect as "innuendo".

"A deal still needs to be done," Walker said.

"In ... contract, you don't really get a say in 'I want to to go to this club'.

"I'm sure he has his preferred club that he'd like to go to but in the end it's a decision that the club and his management need to come to an agreement."

McGovern's looming departure adds to a recent list of players leaving the Crows including Patrick Dangerfield, Kurt Tippett, Phil Davis, Jake Lever and Charlie Cameron.

But Walker said the Crows had also kept or lured players such as Rory Sloane, Tom Lynch, Sam Jacobs and Eddie Betts.

"I understand that Adelaide or South Australia in general, it's hard to get people here," he said.

"But our footy club ... we forever live in the space of who has left our footy club.

"We have got a lot of pretty good people committing to our footy club and staying."

Francou joined the Crows for this season after a stint as a Sydney assistant coach but also won't fulfil his contract.

But Walker believed speculation Francou would join Gold Coast was incorrect.

"He has just decided that coaching isn't for him any more, I'm told he's going back to teaching ... that is the reason he's not honouring his three years," Walker said.

But Kaesler was joining the coaching staff of Gold Coast as an assistant, he said.