Ask Carlos Boozer how comfortable he's feeling offensively and you'll hear an answer that's as efficient as his game these days.

"I'm just hoopin', man," Boozer said.

That he is.

Boozer's 21 points and 12 rebounds Tuesday in a 100-89 victory over the Celtics continued a strong December for the veteran power forward. Beyond 12 double-doubles in his last 17 games dating to mid-November, Boozer has provided plenty of early scoring for a team that is occasionally offensively challenged.

Boozer's layup off Tuesday's opening tip, off a set play and gorgeous baseball pass from Joakim Noah, was another example of the early boost he is providing. He also attacked the Clippers' Blake Griffin early and often during their recent matchup.

"We play together," Boozer said. "But I'm trying to be aggressive when I get the ball. Luol (Deng) and I are able to set the tone a lot from the beginning, getting easy shots and getting us off to good starts. Everybody knows we usually go to (Derrick) Rose. But with him and (Richard Hamilton) out, Lu and I are trying to be aggressive."

Boozer is averaging 14.4 points and 9.8 rebounds in 30.3 minutes. In December, those averages climb slightly to 15.3 points and 10 rebounds in 31.5 minutes. Perhaps more tellingly, he is averaging 6.2 first-quarter points over the last five games.

This marks the third straight season coach Tom Thibodeau has kept Boozer's playing time near 30 minutes per game. Save for his rookie season in Cleveland, Boozer mostly had averaged in the mid-30s during his stints with the Cavaliers and Jazz.