Brad's sets have definitely been simplified with this young group. I will grant you that. This is something he has acknowledged multiple times. Just don't pretend that he doesn't have a lot more with a veteran group of players.
This team is young, but let's not pretend that we're playing 10 rookies out there. Right now, 5 of the 9 rotation guys have 5 or more years of NBA tenure. Sure, you still have to deal with having two 20-year-olds play a prominent role in your starting lineup, but all main guys not named Brown or Tatum have been in the NBA for 2+ years.
As for our offensive efficiency, are you going to ignore the fact that Toronto and Golden State are the only two teams the rank in the top 10 in both offensive and defensive efficiency? Yes, we have Horford and Kyrie. However, many of the teams that do "more with less" don't put forth consistent energy and effort on defense. Brad is trying to teach habits that are required to be a championship caliber team. We could probably cut corners on defense and save energy for the other end of the floor.
We haven't put "consistent energy and effort on defense" now for weeks. It has allowed us to pound the ball a lot longer on offense, so I'll grant you that
That bit about teaching habits is quite funny, because the Celtics have now regressed into pretty much everything that bad teams don't and good teams do, and Brad has repeatedly refused to enforce any accountability. This includes, but is not limited to, playing hero ball, jacking up bad jumpers, turning the ball over, not boxing out, and not rotating defensively). I've forgotten the last time he's sat someone for poor execution... although he routinely sits players for no reason whatsoever.
There's no doubt that the offense can be better. My question is what is your ceiling given the youth on the our roster? What is the potential of this offense while maintaining a top 3 defense? I don't believe we have the experience to be elite in both areas.
Doesn't have to be "my ceiling". This group clearly established what their ceiling is when they run the ball and don't settle for lazy jumpers. There's no excuse for this team to not have an offense that's as a minimum above the NBA average.
Also, your LeBron joke serves no purpose in this debate. I can't stand LeBron but he is an absolute freak who is the exception to most rules in regards to team building. The good news is that he usually gets dethroned by elite coaches and teams in the Finals.
Bad news is there's a shortage of elite coaches in the East.