NBA coaching tracker, latest updates: Blazers hire Chauncey Billups; Mavericks tab Jason Kidd as new coach | CBS Sports Headlines NBA coaching tracker, latest updates: Blazers hire Chauncey Billups; Mavericks tab Jason Kidd as new coach There have been several head-coaching changes since the playoffs began ESN FeedsThis post was … Continue reading NBA coaching tracker, latest updates: Blazers hire Chauncey Billups; Mavericks tab Jason Kidd as new coach