With his future in New York uncertain under new Knicks president Phil Jackson, Steve Mills is once again surfacing as a strong candidate to replace Billy Hunter as executive director of the NBA players’ union, the Daily News has learned.

Mills was in the running to replace Hunter last summer before James Dolan rehired Mills on the eve of training camp after the Garden Chairman abruptly fired general manager Glen Grunwald. Mills was named president, and his plan was to hire a GM with a background in analytics, but that plan was altered dramatically when Dolan began to pursue Jackson in December.

The Knicks originally offered Jackson the head coaching position, but he turned it down before agreeing to a five-year, $60 million contract to run the franchise. After 5½ months as president, Mills was reassigned to general manager and has been working under Jackson since mid-March amid speculation that Jackson will bring in his own GM.

There are conflicting theories on what Mills’ role with the Knicks will be if he happens to remain with the organization. Bleacher Report reported that Mills, assistant GM Allan Houston and director of player personnel Mark Warkentien will either be reassigned or fired. All three have close personal ties to Dolan, who has already clashed with Jackson over potential staff firings.

The Daily News reported on Wednesday that Dolan has gone against his promise to Jackson and isn’t giving him the autonomy to make changes throughout the organization. ESPN’s Stephen A. Smith reported that Jackson and Dolan disagree over making changes to the club’s medical department, which is headed by Dr. Lisa Callahan.

According to a source, Jackson also wants to make changes in the scouting department. The News reported two weeks ago that former Bulls scout Clarence Gaines Jr. has joined Jackson in New York. Jackson also wants to eliminate some staff members simply based on the Knicks having too many employees holding similar jobs. Jackson revealed that he will work with the Knicks’ next head coach on assembling a coaching staff as well as a support staff, which includes trainers, strength and conditioning personal and media relations employees.