Yzerman's real mistake was trying to accelerate their rebuild in the exact way I've argued Grier should not
He overpaid to bring in "win now" veteran players but all he did was work himself into being a bubble playoff team with overpaid players who aren't good enough to actually help the team win at a high level
The contacts he gave out to Copp, Compher, Chiarot and Holl are crippling, every one of those players is useful and has a utility but by overpaying them in free agency he's locked his team away from ever being truly competitive at a high level
He needed to keep the tank years rolling so he could actually secure a #1 center, his team is built around one good defenseman, a 28 year old 1B center and one good goal scoring winger, that isn't close to a winning formula in the short or long term, the Illich family got impatient and he was forced to ruin their team build to satisfy ownership, he's made some crushing mistakes but I don't completely blame him for it
He DID build the best team of the entire salary cap era in Tampa Bay and doesn't get credit for it because he left right before they won the cup, he's the Dale Tallon to BriseBois' San Bowman, so I think he's proven to actually be quite capable, but that team was built slowly over the course of a decade, the Red Wings' organization handcuffed Yzerman and now he's left looking like a failure due to some things out of his control