Because it's probably an excellent career move. He's young (30ish?) and has a legal background, with his role at the Grizzlies likely also having a legal focus. Larger NBA teams have several hundred employees and like any organisation of that size (and popularity), it can be difficult to broaden your experience and responsibilities beyond your lane. The Sydney Kings seems like a big step down from the Memphis Grizzlies, but he's going to be running all facets of the business. His role at the Grizzlies reports up to the GM, so he's likely one of the legal voices behind assembling a roster, player deals, CBA expert etc. If he wants to move beyond that lane, it's really excellent experience. Do this for a few years and then return to the NBA with a far broader CV in hand. An NBL club might be tiny in comparison to an NBA club, but it's still real experience running all of marketing, operations, business development, events, staffing etc for a professional basketball team in a large city, and it's an extremely challenging market. Smart move.