Herb Williams, the ultimate survivor, probably will survive another coaching change. A source told The Post Mike D’Antoni likely will keep Williams on his assistant staff.

D’Antoni may have trouble bringing his whole staff from Phoenix since they are all under contract and Suns boss Steve Kerr may want to keep some of them. D’Antoni is desperate to bring along top assistant Alvin Gentry, and his brother, Dan, is expected to make the move. Phil Weber may be kept by Kerr and D’Antoni is not planning on taking Jay Humphries.

There is a possibility D’Antoni will hire a defensive-oriented assistant to replace Marc Iavaroni, who left after the 2006-2007 season to coach Memphis.

The Suns requested D’Antoni hire a defensive assistant, which didn’t sit well with D’Antoni.