Celtics  assistant coach Lawrence Frank  has interviewed with Houston, Golden State, Toronto and now Detroit for their head coaching jobs and he is said to be one of two finalists for the Pistons job along with former Hawks coach Mike Woodson .
It’s no secret that Frank wants to be a head coach again. He had a fairly successful run with the Nets  that stretched over seven seasons before coming to a screeching halt when the Nets began the year 0-16 in 2009-10. That said as much about New Jersey’s talent as Frank’s abilities as a coach.
In his one season with the Celtics, Frank was tasked with operating the team’s defense. They ranked first in fewest points allowed, second in field goal percentage defense and were in a virtual tie with the Bulls in terms of points per 100 possessions. He also had a solid rapport with the veteran players — no easy task.
It has been assumed that Frank would return if he couldn’t get a head-coaching job but the Celtics may have competition for his services.
The Knicks have been casting about for a defensive-minded assistant and Newsday’s Alan Hahn reports  that Frank would be a good fit as he and head coach Mike D’Antoni have a good relationship and — unlike many coaches — he wouldn’t be bothered by working for a coach in the last year of his contract. Additionally, Hahn notes that Frank’s wife and daughters stayed in New Jersey while he was working in Boston.
Like head coach Doc Rivers , all of Boston’s assistants were working on one-year contracts last season. Team president Danny Ainge noted that while he expected Frank to get offers, the team would have interest in bringing him back.