I think it's Blashill trying to run a system he doesn't have the personnel for. Which isn't a huge knock against him considering all of the coaches who have come and gone with varying levels of success who leaned hard into whatever their favorite systems are. Part of keeping Blashill is probably the Wings saying what sort of system they want to be geared towards moving forward. At some point the Wings are going to have to either work harder towards getting those players in place or go in a different direction that will work with what we do have.
I agree that Blashill is trying to run a specific system, perhaps even a system management wants him to run.
I also agree that he lacks the correct players to run said system. I contest that he lacks the ability to utilize the personnel he does have.
I look at it this way : With the squad we have we are a bottom tier team. Let's say for the sake of argument we are in fact the worst team in the NHL. Being the worst team ( in my opinion ) does not excuse the losing streaks we have seen this season. It's not like we are losing games 6-4 or 4-2, we are getting smashed multiple games in a row.
Adjustments need to be made at that point to the system you're running. 8 and 12 game losing streaks are not acceptable. All Hockey systems are fluid because Hockey is not a set play game like football.
So either Blashill is too daft to make changes to his system, or he has made changes but they have not worked.
Either case is a sign of a bad coach.
I disagree with your last statement that the Wings need to get Blashill better players. Obviously Detroit needs better players, and it's also obvious that with better players Blashill would have a better record.
I'm saying that he can not use players properly, he lacks the ability at the NHL level to adapt to what he is given.
Giving him McDavid and Crosby would only mask the problem and cost us in the playoffs. Kind of like Babcock.