Getty J.B. Bickerstaff of the Detroit Pistons It has not been a banner week in the NBA , and while the fault for some of the more notorious issues that have cropped up in recent days–the selective tanking by the Utah Jazz and the ugly brawl involving the Detroit Pistons in their game against Charlotte on Monday–does not necessarily lie with the head coaches, they’re the ones sitting front and center when it comes to criticism. These are tough days for Will Hardy in Utah and JB Bickerstaff in