Carey turns 32 later this year & has missed 13 games the past 2 seasons. Calgary was right to move on from him - as they did with Messam. After two seasons over 1,000 yds @ 32 he was done. He was a shadow of himself in his last year with the Riders.
RB’s fall off earlier & IMO you’re taking a chance when they hit 32. Even Andrew Harris ran into the same injury bugs, downward performance as the 2 above - @ that age. Wes Cates, C J Gable - there’s tons of them that hit 32 & they drop off the map.