With some teams in the 16th having changes at the head coaching position, the question is, "Can a new coach make a difference?"

IMO sometimes a different voice can make a difference, but it still comes down to talent both on the sidelines an on the court

Yes he can, if the players and parents and administration buy into his philosophies about how to play the game. Also if politics and personal interference from disgruntled parents are kept under wraps and to a minimum and the coach gets the support from the school when he has to make tough decisions that some powerfull people don't agree with, then if that coach has knowledge, skill, and respect, then he will be successfull.

I forgot, you have to players and talent. Also the ability to organize the lower grades to develop that talent and player pool to keep your pipeline full of players wanting to play for that coach and school and not transfer later on.