Getty Luka Dončić reacts during the Lakers’ playoff exit — as one of his closest former coaches, Greg St. Jean, draws interest in a rival coaching search. The Los Angeles Lakers ’ offseason questions may not be limited to their roster. Assistant coach Greg St. Jean — a key offensive voice on JJ Redick’s staff and a longtime collaborator of Luka Dončić — is drawing interest in the Portland Trail Blazers’ head coaching search, according to Portland-based Trail Blazers insider Sean Highkin of Rose