They are all much better coaches. Watch Stevens deal with a zone. He has no idea what to do. Miami beat them with less talent but completely out coached Stevens. They played a zone and took the Celtics out of the series. The Celtics didn't even put a player in the middle of the free throw line area. He is horrible with line-ups. There will be stretches with no scoring on the court and the other team goes on a run. His teams don't play hard. They have talent but no fire. No Larry Bird or Kevin Garnett on this squad. Once in a while Robert Williams and Marcus Smart will show fire but the rest basically play on cruise control.
Stevens has previously outcoached Rivers, Nurse and Budenholzer on numerous occasions. The only clear coach above Stevens in that list is Pop.
I also forgot to mention Kerr, who frequently rests players too.
You make it out as if we're some garbage bottom-dweller. Routinely, despite really varying talent levels, Stevens has his teams making deep playoff runs, in spite of rotten injury luck. Newsflash - every single team has periods where they field bad lineups, concede runs, and don't "show fire". That's the way the game works nowadays.
I'm not even a Stevens fan, as my signature probably indicates. I think he's 100% the Del Harris of this team. A good coach in his own right, but probably won't get us over the hump and into the Finals. However, given there's no apparent Phil Jackson to take over, Stevens is better than almost all alternatives.