To drop cover or not to drop cover, that seems to be the question. I don't know how to define drop coverage or not but what the Celtics are doing is trying not to switch and end up with Horford or Williams on Curry. They are trying to have the big defend enough to allow the primary defender to get over the pick. Switching ends up with such bad match ups that the Warriors were killing us.
I suppose we could go with a really small line up and go back to switching everything. For example play Smart, Brown, Tatum, White, and Pritchard. Then we could switch to Curry in any match up but we would be vulnerable to rebounding.
I don't think the approach is fundamentally flawed or anything like that. We need to execute it a little better and maybe a couple of Curry's makes will become misses but he has been hitting some shots that it is just nearly impossible to defend.