Catching up on some comments I wanted to respond to:
Thinking about it, this thread is a good case study for recency bias.
Please explain, I think it's the opposite.
With the way the team ended last year, if fans were exhibiting recency bias then the poll would have been overwhelmingly one sided favoring the over.
What hasn't been a surprise to me about this year's Celtics is how good they've been at playing defense. They showed signs of it last year on their run. And they do have three elite level perimeter defenders on the team. I think some people were legitimately concerned about not having a defensive game changer on the front line, but I always thought that Crowder, Bradley and Smart would be able to set a defensive tone for this team that would allow them to be a disruptive, high turnover producing, good defensive team.
I always thought that the effort and intensity of the guys you mention would get the Celts a long way toward being really good defensively, but that teams would be better at taking advantage of the Celts' soft interior.
I'm not sure if it's smoke and mirrors, or simply that Sullinger, Amir, Olynyk, Zeller et al have been better than the eye test would indicate, but somehow the Celts have managed to be an elite defense without have any exceptional individual defenders (to my eye) over 6'5''.
I think Sullinger, Amir and Olynyk have been better than you think but their jobs are made a lot easier due to the wing defense.
The key to the Celtics defense is the way they drop below the ball on defense. More often than not the opposing ball handler has 5 celtics defenders between him and the hoop. The way that every Celtic stays below the ball and moves in concert to stay that way is why we have a top 5 defense.
Individual man-to-man defense is less important for the Celtics than knowing where you are supposed to be within the defensive scheme and being able to get there. That's why I think the defense will fall apart too often if you stick in a perimeter scorer who won't try on defense.
The defense absolutely relies on every man "being on a string". However, my hope is that anyone we brought in would be shamed into trying on defense all the time because that is what everyone on the team does.
BTW, is voting still open on this thread? I swear the overs were at 40 yesterday. It looks like people are retroactively trying to look like they called it over the summer.