Is the Knicks' strong start under Tom Thibodeau sustainable? Brian Scalabrine weighs inCurrent Celtics analyst played under Thibs -- plus notes on RJ Barrett and more1/22/2021, 6:25 PMIan BegleyNBA InsiderDec 29, 2020; Cleveland, Ohio, USA; New York Knicks head coach Tom Thibodeau reacts in the first quarter against the Cleveland Cavaliers at Rocket Mortgage FieldHouse. Mandatory Credit: David Richard-USA TODAY Sports / © David Richard-USA TODAY SportsDec 11, 2020; Detroit, Michigan, USA; New York Knicks guard RJ Barrett (9) dribbles the ball up the court during the third quarter against the Detroit Pistons at Little Caesars Arena. Mandatory Credit: Raj Mehta-USA TODAY Sports / © Raj Mehta-USA TODAY Sports