Boston Celtics assistant coach Lawrence Frank interviewed Wednesday for the Detroit Pistons' coaching vacancy, according to NBA coaching sources. Frank, formerly coach of the New Jersey Nets, is the second candidate to be formally interviewed for the position, sources said, joining former Atlanta Hawks coach Mike Woodson. The Detroit News and Detroit Free Press reported in Thursday's editions that the Pistons also have scheduled an interview with Milwaukee Bucks assistant Kelvin Sampson by week's end. The Pistons need to replace John Kuester, whose long-anticipated dismissal was announced June 5 after the team was formally sold to California billionaire Tom Gores. Kuester posted a 57-107 record in two turmoil-filled seasons as Pistons coach. Read more: http://sports.espn.go.com/nba/news/story?id=6668388