Crows co-captain Taylor Walker has deflected talk surrounding his future in the role while publicly pleading for a response from his teammates as they face the prospect of another lost season.

Despite sitting ninth in the Coleman Medal race with 38 goals from 21 games, the 29-year-old has come under intense scrutiny for his performance on-field in addition to his occasionally controversial leadership style.

Walker, who shares the captaincy with Rory Sloane, said no decision would be made regarding his leadership role until season's end.

"The role will continue to evolve and I'll cross that bridge at the end of the year," Walker told Adelaide media.

Widely considered a top four and premiership threat entering the season, Adelaide has been one of the major disappointments of 2019, sputtering to 10th place with a 10-11 record. It faces an uphill battle to feature in September despite sitting in the top four after round 13.

Since then, the Crows have gone 2-6, winning only one of their last five games, with Saturday's 66-point loss to Collingwood representing their heaviest defeat since round 10 last year.

Walker said his team is currently performing well short of its best.

"I hope blokes are ready to roll their sleeves up because we're still a chance to play finals," he said.

"We need to play with a bit of heart and a bit of passion and play for each other and play for the guernsey.

"I'm shattered that we're producing what we are because I know we're capable of playing better footy."

Since appearing in the 2017 Grand Final, Adelaide has won only 22 out of 43 games.