Flagg, just want to say excellent post, a bit wordy for my liking but worth the time. One thing you didn't mention is the PP... watching this team try to enter the offensive zone on the PP is head scratching, they kill all forward momentum by dropping the puck back to a trailer, usually Jack on the first unit, by the time he crosses center ice there are 4 Sabres standing flat footed on the blue line and 5 defenders clogging up the remaining ice. So what does Jack do, he either tries to stick handle through 2-3 defenders or he fires the puck in and it's a race to the puck. It's a terrible play but it's our go-to. I'm all in for a new coach. We need a system that fosters puck possession and puck support. We just give the puck away to easily and too often.
My other favorite is when we carry the puck into the offensive zone and the other 2 forwards go off for a change so it's 1 on 5. Those odds are great. How about maintaining possession in the defensive zone, get fresh legs on the ice and come up as a unit!