This isn't so much of a test of the Celtics mental toughness as it is a test of their ability to stay focused. This is kind of the same thing, but I see it as a little difference. I predict that they are going to build a big lead. Then are they going to coast and let them back in? Or can they just stay focused and win every quarter? To me, that should be the goal, to win every quarter. No lapses. No let ups. Don't get too high. Keep the effort and execution steady.