Boudreau has had some very good teams. But stacked rosters is pushing it.
Every team he's coached on has had a lot of nice pieces but is very flawed. Original Caps were regular season juggernauts with ridiculous offensive talent but questionable depth and mediocre defense. They got eaten alive every playoffs once teams were able to gameplan them and realize Jeff Schultz is on their first pair.
I'll admit those Ducks teams he was on were stacked, but he also came within a game 7 of going to the finals. Obviously, success is measured in Stanley Cup rings, but that is a very successful season.
I forgot about Tocchet's first go-around, but that was after the whole Melrose debacle and while the Lightning were rebuilding IIRC. All I can remember from that Lightning era was them being a complete ****show and their goaltending being a revolving carousel of Mike Smith, Nittymaki, and Holmqvist or whatever the other guys name was.
If you wanna say I'm wrong in saying Boudreau sucks, I think that's fine, but I also think it's short-sighted to say he's good because of his teams having success and always making the playoffs. Do you really think all the teams he's coached would have missed the playoffs with an average head coach? Or that a really bad (but maybe not the worst team in the league) team last couple years would have been in the playoffs with Boudreau? I don't think so.
Bad head coaches win cups sometimes too. Bob Hartley was a stupid one and he won a cup and got to a couple other conference finals with that Colorado team.
I liken Bylsma to him, but they obviously came from very different backgrounds. I can see Bylsma getting another head coaching position years down the road, but probably after serving as an assistant or as a head coach in Europe first, much like Hartley who went to Europe between his Atlanta stint and coming back to the NHL in Calgary. He may like his TV job better than coaching though. It might be safer and provide more security.
I have also acknowledged Boudreau had poor goalies, mostly in Washington, so I give him a bit of pass there. Tocchet also did, but it's also clear to see his team has no system. When they were winning towards the end of the year, it was because of Raanta, who is probably the best goalie he's ever had, as funny as that may sound.