The Los Angeles Lakers are set to rebuild around Luka Doncic this offseason. Doncic’s three-year, $165 million extension is set to begin, so the Lakers are on the clock to create a championship-contending roster.According to ESPN’s Bobby Marks, the Lakers have multiple needs this summer, including shooting, a shot blocker and lob threat, and an athletic, defensive-minded wing.There will be plenty of shooters in free agency, though Luke Kennard f…