Holiday and the Celtics have agreed to a huge new extension that saves Boston some money in the short-term and makes sure they have their core together for a few more seasons. John Karalis of Boston Sports Journal and Tom Westerholm discuss the deal, what it means to the Celtics, why it's the perfect timing for the deal, and what it could mean long-term. Plus, hear Joe Mazzulla's explanation of how the Celtics need to mentally approach the playoffs.