For me it's simple. I don't care what kind of coach Tippett is or how he's received in the room or what his reputation is.
In general terms, the only reason to extend a coach long-term is if he is producing definite success and tangible results, like Scotty Bowman in Montreal or Mike Babcock in Detroit. The blunt fact of the matter is that almost all coaches are in about the same orbit in terms of effectiveness, strategy, and tactics at the NHL level. What distinguishes them is the chemistry between them and their team - or the lack thereof.
I don't blame Dave Tippett for everything bad that has happened with this team. But I do think that on any other team in the league, he'd have been fired a long time ago for no other reason than there needs to be a culture change around the Coyotes. But he's sacrosanct with the Coyotes because the owners are too poor and don't want to be bothered with searching for a new coach, and he's sacrosanct with the fans because, for three or four years when he was first hired, he turned the franchise's fortunes around from the Gretzky years and took us back to the playoffs.
If he were fired on Monday, my attitude towards it would be tempered by who else would get fired with him. I think the Coyotes need a complete overhaul of the coaching staff. If they fired Tippett only to install Playfair, it would accomplish nothing, IMO. Might as well keep Tippett at that point.