Tom Thibodeau is one of those guys who always seems to have a mustard stain on his tie. We’ve come to associate star NBA head coaches with a slick, Pat Riley style, but Thibodeau carries the rumpled, crotchety mien of a lifelong third-in-command. Indeed, he served as an assistant for six different teams over 21 years, including the Knicks from 1996 to 2003 and the Celtics from 2007 to 2010, when he cemented his reputation...