The Sacramento Bee (Sam Amick) reports:  The Kings will add a piece to their front office next month, when attorney and agent Jason Levien is expected to join the team as assistant general manager. The move, which sources within the organization and close to the team say should be official in the coming weeks, marks a rare addition to the Kings’ management team that Geoff Petrie has headed for 15 years. And with an on-court rebuilding and youth movement already in effect, the franchise also is taking the same approach upstairs.