Some NBA fans are convinced Jayson Tatum threw shade at his former Boston Celtics teammate Jaylen Brown while speaking to kids attending his basketball camp. Tatum made the reference in question while discussing leadership in a speech originally posted on the Jayson Tatum Foundation's Instagram story. "I don't know it all. Being a leader is being comfortable with raising your hand, like, I don't know, can you explain that to me? "I never told anybody, look, I'm the smartest person in the room," Brown said on a July 2 Twitch stream.