Boston — If you'd told me a year ago that at this point in the season the Celtics would have the best record in the NBA, and would be on pace for 70-plus wins, I would've laughed.

However, with the acquisitions of Kevin Garnett and Ray Allen, to say nothing of role player and defender extraordinaire James Posey, the Celtics have taken on a new identity—as a team.

Last night, I had the privilege of watching the team from the second row of seats at the Garden. The Celtics notched another impressive blowout win, this one over the Milwaukee Bucks behind a season-high 32 points from captain Paul Pierce.

For all the offense, though, it was the newfound defensive intensity that was key to the Celtics' success.

Garnett impressed me with his fire. He's at a point in his career where he plays every game like a championship contest.

Point guard Rajon Rondo is also making strides. His decision making is better than ever, and his defense remains top-notch.

Ultimately, look for the Celtics' refined chemistry to drive them to the top of the Eastern Conference—and deep into the playoffs.