Phil Jackson has a broken heart and broken team entering the offseason — admitting the exit interviews a disillusioned Kristaps Porzingis blew off were “one of our most disappointing ones we’ve had.’’ There is no way to fix a broken egg, and maybe no way to fix the broken Knicks, but we will attempt to decipher Jackson’s grand plan for the draft and free agency. Jackson finally laid out a plan after snubbing the local media for seven months, indicating his breakup with Jeanie Buss was one cause of his silence. Jackson’s 49-minute presser acknowledged a clearer defensive strategy being needed next season, including defending the pick-and-roll. Incessant triangle talk obscures the fact the Knicks’ 31-51 season was due to failure to make stops in their multitude of final-possession losses. According to The Vertical, Porzingis is planning a long trip back to Latvia and may not return to New York until close to the start of training camp, avoiding the practice facility where Jackson is expected to have more triangle clinics. Porzingis told The Post this week he had no interest in representing the Knicks on the lottery dais May 17 because he would be in Latvia. “The glaring issue this season was defense — both team and individual,’’ former Knicks scout Scott McGuire told The Post. “Winning in team sports is a lot of work, commitment and sacrifice, and the defensive part was lacking big time.’’ Coach Jeff Hornacek’s most honest statement came in January when he said the roster may have players “just not capable” of playing defense. The remark didn’t sit well in the locker room but it was dead on. Before the season finale Wednesday, Hornacek said adding one defensive-minded player could change it. Losing one defensively lax player also could help, which is why Jackson wants to ship Carmelo Anthony.