My first thought on this is that the problem was not when they switched on Tatum, it is when they doubled him, which was often in the playoffs. I think he has gotten better at dealing with the double, not as good as Jimmy Butler, but better. Scheme is an issue too though. The rest of the team needs to be moving, not just standing around.
As to Porzingis, I absolutely think he is going to help tremendously. Most of the year, we played Horford and 4 guards/wings. Horford mostly stayed in the corner. Porzingis is going to add much more versatility to the offense. This should make it harder for teams to double Tatum (or Brown).
Celtics a better passing team under Mazzula than under Udoka. We finished 7th in assists per game last season, 13th in Ime's season. 26.2 v 24.8
Offensive execution under Udoka never got that advanced either. I understand that it takes a while for it to get ingrained to the degree necessary to be able to execute at the NBA level. We have not gotten there in either season in my view. I do not feel the offensive execution was better under Mazzulla though, in spite of the assist numbers, rather I think it regressed a little.
But as to assists, didn't we learn with Rondo that assists can be a misleading stat? Some assists come from one guy pounding the ball and are not indicative of good offense. Others come from good team ball and player movement and are indicative of good offense. Team assists are more revealing than individual assists as many of the best shots come after a few passes, not just one pass, but assists reflect only part of the story (like any stat).
I concede and have said that I feel Tatum in particular has improved in terms of dealing with the double team. But the good shot out of a double team comes after 2-3 passes usually, not one pass, so it is not all about Tatum. I am hoping that with the team able to run it back with largely the same team and same head coach, and with assistants who want to be here, that the team and the coaching staff can go to the next level in terms of offensive execution and scheme. If they do, the assist numbers will take care of themselves.
I want to see the ball and players moving. The last couple of seasons we move the ball OK but the off ball player movement is limited and predictable. Teams can throw a double at Tatum and know the rest of the team is going to stand around. We are easy to defend. We often overcome that with raw talent, thankfully, but we need to add that next level of nuance to our offensive scheme, and the execute it. I think Porzingis is going to help with that. The coaches need to teach/work that. And of course, the players need to buy into it and execute it, especially at the end of games.
This is what has prevented us from winning a championship the last two seasons.