NBA sources believe Jaylen Brown thinks he’s the smartest person in the room, per @colincowherd “I had two NBA sources … two people in the league, one an executive, one a scout, say that Jaylen Brown has — it’s a disease. He suddenly thinks he’s the smartest guy in every room he’s in … You make a lot of money, suddenly you’re absolutely sure, you don’t wanna listen to your bosses, you don’t wanna listen to consultants, you don’t wanna listen to teammates.” (h/t @TheNBABase & @Fullcourtpass )