ADELAIDE will revert to a single captain in 2020, with inspirational midfielder Rory Sloane the overwhelming favourite to the lead the Crows in his own right.

Sloane co-captained the side this year alongside Taylor Walker, who stepped down from the captaincy at the end of last season.

No official decision on who will captain the Crows next year under new coach Matthew Nicks has been made, but chief executive Andrew Fagan said the club would go back to having one captain.

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"I expect it to be a sole captain, but it's not something we've openly discussed," Fagan said.

"That's what I expect to be the case, it will be a single captain."

Fagan said Nicks was under no pressure to make his choice, whether it be Sloane or someone else.

"He just wants to get a feel for his squad," he said.

"He's already spoken really highly about Rory Sloane and what he brings, but he's equally getting to know some of the others within the club who show significant leadership potential.

"I think he's enjoying that process and I wouldn't expect it's a decision he's going to make until the new year."

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Key defender Daniel Talia, forward Tom Lynch and midfielder Matt Crouch are the other captaincy options.

However, Sloane – a dual best and fairest who will play his 200th game for the club in round one next year – is the front-runner having shared the role with Walker in 2019.

Sloane, 29, will finish his career as a one-club player having signed a long-term deal until the end of 2023.

The Crows are also hoping to extend the contract of reigning best and fairest Brad Crouch, who will be a restricted free agent at the end of next season and was linked with Gold Coast during the Telstra AFL Trade Period.

"Talks are always ongoing … but we won't provide ongoing commentary about it," Fagan said.

The Crows are closing in on appointing a head of football to replace Brett Burton, who was sacked in the wake of the club's external review.

"It's been quite an exhaustive process, we're very much at the pointy end and I'd expect a decision before Christmas," Fagan said.

The new leadership and culture position, that was recommended by the review, is also being finalised.

However, the Crows want their new head of football to have a say in that appointment before it is ticked off.

"We've spoken to a number of people and we've got a level of comfort around a few candidates," Fagan said.

"It's getting down to the stages of making a final decision."