Aaron Boone is expected back for a ninth season as Yankees manager, but his staff will look a bit different.  The club is not bringing back longtime bullpen coach Mike Harkey and first base/infield coach Travis Chapman, The Post’s Joel Sherman confirmed on Tuesday, while hitting coach James Rowson will be interviewing for the vacant Twins manager job , sources told The Post’s Jon Heyman and Sherman. Access the Yankees beat like never before Join Post Sports+ for exciting subscriber-only