So, what's the point of trying to win if you can't run the defensive scheme that works for your roster? The Blazers basically tried to emulate drop coverage without doing classic drop coverage by playing Zone. There are reasons this team played so much zone last year - either having to deal with a slow-footed center or defensively deficient small backcourt, at times, both.
No disrespect, RM, but this is talking from both sides of the mouth and it makes no sense.
If this team wants to build winning habits under the current coaching staff, it's imperative to update the roster to support the vision the coaching staff has. Keeping Nurk to fight against the heavy-weights of the league while running a system where he is marginalized is counter-productive, the same as trying to instill systems and habits for a young roster and playing against the style to maximize an older player that is not central to the team's future.
That's one way to look at it, the other is that Nurk is a slow center that does not work well in a switching scheme - so he will never make it in this system. Better to start with young ones that might one day make it.
It can't really because:
1. While Adams is not the fastest center in the league - he is miles faster than Nurk
2. Memphis has JJJ (current defensive player of the year) playing next to Adams or as a center when Adams is out. The Blazers do not have this luxury.
It would be a no-issue to have someone like Nurk on the roster as a backup / secondary center if you have a quick, mobile stud as Memphis does. Keeping him for a rebuilding team because Jokic and Embiid are in the league is the wrong kind of team building. This team needs an upgrade at center for multiple reasons, a younger one that can grow with the new core, a mobile one that can play to the coaching system and one that does not pout and can be relied on to stay healthy. Nurkic, unfortunately, is not that guy.