Houston had the Los Angeles Lakers right where they wanted them. Up six with under 30 seconds left, the Rockets were seconds away from cutting the series deficit to 2-1. Then everything fell apart, and the Lakers walked out of Toyota Center with a 112-108 overtime win and a 3-0 series lead , all three without Luka Doncic and Austin Reaves. Head coach JJ Redick addressed his team in the locker room after the win, and it was as honest as it gets from a coach after a game that nearly slipped away. Redick opened by framing what the game was supposed to test. Before tip-off, he had talked to his team about "poison composure," staying mentally locked in when things get messy. Down six in the final 30 seconds, they found it. "That was the ultimate test of our poison composure and you guys just kept playing." JJ in the Lakers locker room: "Then we go into overtime and it's not pretty.…