The Boston Celtics have struggled for real success in the Brad Stevens era, but that has not changed one of the most important aspects of theit long history, winning is always the number one priority. The Celtics added their most established veteran in Al Horford, and could see their 19 year old rookie Jaylen Brown have a key role, and both of them have joined the team with the same mentality.
The Celitcs have always been motivated and the elevated level of talent on the team has just continued to fuel that fire.