Some answers to my own post on another board--I'm still looking for more if people know better than I do:
Doc Rivers, free agent
Strengths: Rivers is in rare territory as an NBA head coach, a so-called "players coach" who nonetheless is a no-nonsense leader of men. It's what allowed him to ultimately have success with personalities that were all over the map, and why he was able to build organizational culture for a franchise in L.A. that was best known for its racist owner before he arrived. A winner of 943 games across 21 seasons, Rivers has consistently earned rave reviews from his players, adapts his messaging to suit the personnel he has, and would provide the Sixers with about as respected a leader as you'll find at the head coach position.
Weaknesses: Would you believe me if I said it was the actual coaching part of the job? Rivers' latest playoff flameout marks the third time in his career one of his teams have blown a 3-1 series lead, and he was already the only coach to oversee more than one of those. Rivers' best work tactically has come on teams with lower pressure and expectations, while his years in charge of would-be contenders were plagued by questions about his rotations, adjustments, and meandering identity. Perhaps not the best guy to fix those problems for Philadelphia, then.
The latest intel (9/29): Within hours of parting ways with the Los Angeles Clippers, multiple teams (including the Sixers) reached out to Rivers to see if he was interested in their opening, sources say. That window might have been even shorter, in fact — Marc Spears of The Undefeated reported the Sixers and Pelicans had reached out to Rivers within about an hour following his departure.”"