To coach over a thousand games in the NHL you have to be a good coach. Maurice may not be the best or even top 15 in the league, but no question he is a good competent coach. Goaltending on the teams he has coached has always held him back in his career . When you work with elite talents such as Weeks, Toskala, Raycroft, and Pavelec your success is going to be limited.
I think the better question is, is he is a good fit for the Jets? When he was first hired, he turned around the Jets and they almost made the playoffs. The next season, the Jets reached the playoffs for the first time. Those seasons had the Jets near the top in shot metrics and possession stats but with horrible goaltending and special teams. His third season with the Jets he had a much younger lineup with prospects starting to graduate and possession stats were still in the Top 10. However, Pavelec and Hutchinson provided abysmal goaltending and it wasn't good enough to reach the playoffs. Fourth season comes around and the Jets lucked out with Laine and all of a sudden the team looks like it could contend for the playoffs. Possession stats start to fall big time and the Jets are in the bottom 10 in the league and still well below average league SV%.
That brings us to this season. Possession stats continue to decline (currently dead last) but goaltending is hugely improved and has the Jets with a 7-3-3 record. Is Maurice responsible for the huge decline in possession stats or is it the fact that the Jets have around 12 active players under 25 on their roster? Or is it the fact that the Jets have transitioned from a fast and hard checking team to a fast and high-powered offense? How much credit does Maurice get for the development of Scheifele, Ehlers, Laine, Trouba and Morrissey? Do we ignore comments by players like Wheeler who say Maurice is the best coach he's ever had?
I think this season is going to be the real test for Maurice. The Jets need to make an impact in the playoffs or it's probably best for them to move on to another coach more suited to a young team with a high powered offense.