Still not really sure what you're getting at.
Fair enough
For as bad as DB was at the beginning of the season as it came to player usages, he's gotten much better as the season has gone on...for the most part. Yes, there are still parts of games where one can scratch their heads at DB's decisions.....but DB has gotten better with his usages as the season has gone on.
I'm not really criticizing his player usage.
I'll comment more on this at the end*
As far as being nervous about Jack and Sam being the 2/3 line centers....I don't blame him. A number of fans were nervous about it too.
I get it the concern as well. But if this is supposed to be development year, why not?
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I've found it interested when Murray reveals things that he had envisioned for the season and they don't always jive with the path Disco has taken this year.
One example of this was Murray's recent comments on Reinhart. There are plenty of other ones. What I was curious about was what made Disco decide to make this specific change (Reinhart away from center). Disco has handled Reinhart in a far more protective way than he did with Eichel. Disco obviously did not share Murray's enthusiasm and faith in Reinhart as the season started.
*Since you brought up player usage
One of the things that will be interesting going forward is how Murray addresses holes on the roster. Part of what helps him get an idea of what needs addressing is how the team and specific players are playing. As has been discussed in many threads, usage and role heavily influence these things. So when some are struggling or not playing up to expectations is it because of that? Or is it because of something else? When the coach veers away from the GM's vision, even a little bit, it can impact how the pieces the GM acquired becomes what he was envisioning.