Perhaps the Celtics are a "finesse team," although I think that's a better label for their offense rather than their defensive style which I would say is more of a "gritty." But I disagree with them being "soft." The Celtics have shown for seasons now that they're one of the most mentally tough teams in the league. Doc has said many times in games where the other team is being overly physical or trying to provoke them that if they want to show the other team how tough they are, beat them on the floor. I think the recent New York game was an example of that, the Knicks were more physical, but in the end the Celtics won because they were tougher.