A coach's job is to motivate players and put them position to win, where they can execute their talents to create winning plays and buckets. The players are not making shots, but CBS has not exactly did things to turn it around and sticking to the same old ball and quite frankly it is not working very well.
I think the blame is 70% on the players, 30% on the coach. I am not calling for his head, but if something is not working part of it is on the coach to adapt.