I know it is hard to keep things separate sometimes, but the poll question is which coach will give their team a coaching advantage, not which coach is a better human being or more likeable to fans.
Both coaches have their teams playing well, bought in. Kidd even has Kyrie Irving bought in. Kidd deserves some credit for that but the reality is that Irving could flake out tomorrow and I am not sure Kidd would be able to do anything about that. I don't expect that, Kyrie will probably hold it together for the rest of the series, but you never know.
I don't see this series as requiring any "rocket science" from the head coaches. There will be adjustments, there will be decisions made, plays called, but I don't expect either team to do anything radical. I don't think DAL has the personnel to do anything much different than what they have been doing and I don't think BOS will have any reason to suddenly start doing something radically different than what they have been doing all season.