The Pistons have a couple draft prospects in Auburn Hills Wednesday, as next Thursday’s draft quickly approaches. Guards C.J. McCollum and Michael Carter-Williams were at the Pistons’ practice facility; they are candidates for Detroit’s eighth selection. McCollum, a 6-foot-3 guard from Lehigh, is considered one of the most complete guards in the draft, although he just played 12 games last season before injuring his left foot, cutting short his senior year. McCollum is listed as a combo guard but has a tendency to be more of a scorer with a great jumper. One of the questions the Pistons has is whether he could make the transition to point guard, somewhat like Portland guard Damian Lillard, who also came from a small school (Weber State) but became the NBA’s Rookie of the Year.