I did a quick google search and this one with Houston was signed when he was repped by Rob Pelinka who ended up becoming the GM of the Lakers in 2017. From 2017 when Pelinka became the GM of the Lakers until Feb. of 2024 he used "part-time agents" I kinda assume that is what these players do when they rep themselves? He would hire these part time people when he kept wanting to get traded lol which factoring in his spell of trades seems like they were really full time! In 2024 though he did hire a new full time agent in Troy Payne who he still has!