Aaron Miles comes from the Golden State Warriors where he's been their player development coach the past couple years. Prior to that the 38 year old Miles coached the Warriors G League team in Santa Cruz.
Garrett Jackson played ball at USC and Saint Mary's collegiately and is just 29 years old. Honestly I'm not sure if he has any coaching experience. Earlier this summer Udoka added Damon Stoudamire and Will Hardy to his staff.