Maybe someone smarter can analyze this for me, but what is with these bad ATOs too?? I agree with @GoldStar88 that the players are responsible too, they need to execute. But some things like ATO plays are a coaching/strategy thing. C's had chances at the end of the 4th and OT, and even some other crucial moments and it felt like the plays were either broken or led to a bad shot attempt (meaning there wasn't much creativity and they had to settle for a bad shot)
That's one area I miss Brad Stevens in big time. His ATOs and end of quarter stuff was awesome