On this week's NBA A to Z podcast, Insiders Sam Amick and Jeff Zillgitt discuss the retirement of Kobe Bryant's Los Angeles Lakers jerseys and how the Lakers wish they could concentrate on the future instead of having to celebrate the past. The guys discuss the new arenas being built in San Francisco and Milwaukee and what those will mean to the Warriors and the Bucks. They also break down the compelling Christmas Day games, including Golden State vs. Cleveland and Houston vs. Oklahoma City.