Cooper also revealed that All Blacks lock Brodie Retallick will join Cane as co-captain of the team.
"We've kept with him (Cane) the whole time. He's a great leader and so he will captain the Chiefs for 2019 and co-captain with Brodie Retallick.
"So while Sam is not playing he'll be doing a lot of the captaincy off the field and Brodie will be leading the team on the field."
Looking ahead to this season, which kicks off with a derby against the Highlanders on February 15, Cooper said the team showed positive signs last year despite being ravaged by injuries – and he looks to carry on that momentum to this year.
"It was a tough injury year in 2018, so we're looking for it to be better and more effective on the field with our players to [2019].
"We've got 31 of the 38 back so there's good continuity there. And we've developed some depth.
"The stats were pretty positive. But again, this club and group and a lot of us being in our second year now is more settled, and understand the culture better and environment better. We're looking to really enhance what we did last year."