Former Boston Celtics championship center Kendrick Perkins has gone full NBA talking head in the past few years. He's flip flopped time and time again on his Celtics predictions, but he's been consistent on how good the Celtics defense is. Stephen A. Smith who tends to say more nonsense than solid points has been rather accurate with many of his recent Celtics assesments of late in a sign that the world might be coming to an end.
While Marcus Smart has an odd dichotomy of Celtics fans where many treat him like some god and others think he's trash, the objective reality is he's a good player who helps you win some games and can also cause you to lose some games.