Perhaps, but even though it’s too late for the Lakers to make trades, the franchise still has time to improve its roster before the playoffs. The most obvious move was adding Darren Collison, a point guard who would have provided LeBron James with another ball-handler, playmaker and scorer. Collison retired suddenly over the summer, flirted with a return and was seen courtside with Lakers owner Jeanie Buss at Staples Center last week before declining. “That’s a blow,” a former general manager said. “I’m not sure the Lakers can find a better fit than Collison.”