Houston’s long-rumored potential reunion with Harden, the 76ers guard who holds a player option for 2023-24, in addition to the Rockets’ chances at landing other primary free agents and top-billing trade targets this offseason, were repeated themes throughout Houston’s conversations with coaching candidates, sources said. Middleton has been another potential target discussed throughout the Rockets’ coaching search, sources said. Udoka spent time with Harden as an assistant during the All-Star guard’s first season in Brooklyn. And Celtics All-Star Jaylen Brown, whom rival executives are closely monitoring as he becomes extension eligible this summer, has been one of Udoka’s most public supporters after Boston suspended the coach following an improper relationship with a Celtics staffer.