I think he's shown over seven years now that he is a bad GM.
He got a lot of draft picks his first couple years to stockpile young talent, but then he got in cap trouble and rushed them into the NHL. Granlund, Coyle, Brodin, Haula, Kuemper, all of them barely hit the AHL on the way up and haven't lived up to their potential. He's been doing the same thing now with Dumba, Folin, and Olofsson.
Both his head coaches were terrible hires. The first one had no clue about instilling a defensive system and was gone quickly. The second is now watching his FIFTH CONSECUTIVE COLLAPSE and admits that he has no idea how to fix it or why it's happening.
Obviously his best move was signing Parise and Suter, who were top players at their position. They pretty much dragged the team into the playoffs and are really the only reason Fletcher and Yeo have jobs right now. Of course, this is after he signed Havlat, who was such a bad fit his captain fought him in practice and he had to be traded.
So at this point you had a team struggling to squeak into the playoffs but high expectations to win. What does Fletcher do? Start dumping picks for band-aids. Pominville was a good trade because he was a proven talent with time left on his deal. But he also dealt THREE 2nd round picks and a 3rd rounder for Moulson, Stewart, and Bergenheim. Those guys were terrible and walked in free agency.
And throw the goalie issues on top of this. Harding plays very well and signs a contract but is diagnosed with MS. Fletcher's reaction is to sign a 35-year-old goalie coming off multiple injured seasons to a 3-year deal with a NO MOVEMENT CLAUSE. He goes on to play about 40 games over three years and puts the team in roster and cap trouble. Now you have two injured goalies, so Fletcher has to rush Kuemper up, who of course plays inconsistently. Because of this, he has to make panic trades for Bryzgalov and Dubnyk giving up more draft picks.
Combination of bad coaching, stunted player development, and trading away assets, and look at the state of the team. They have one of the worst prospect pools in hockey and one of the worst minor-league teams in years. I believe I read that they have lost 12 straight. There's no talent (especially up front) to step in when a player gets hurt in the NHL. The Wild weren't able to add any talent this past summer because of cap issues.
If Dubnyk doesn't come in and stand on his head for half the season, we're not talking about Fletcher right now. No idea what he's going to do this year because he's completely out of options, aside from firing his coach.