All five Celtics  starters scored in double figures, as the C’s escaped with a second straight overtime victory on Friday night — this time, a 110-105 win over the Chicago Bulls  at the TD Garden. Ray Allen  scored a team-high 25 points, while Kevin Garnett  produced 16 points and 10 rebounds to improve Boston’s record to 5-1.
THREE THINGS THAT WENT RIGHT
1. Spread the wealth: The Celtics went on a 22-3 run to start the third quarter, taking a 12-point cushion they didn’t relinquish until midway through the fourth quarter. In the span of 6:28, six different Celtics scored (Paul Pierce , Garnett, Glen Davis , Nate Robinson , Marquis Daniels  and Semih Erden).
The C’s got a solid contribution from Daniels, who scored eight of his 11 points in that stretch. In all, seven Celtics reached double figures (Allen-25, Garnett-16, Davis-15, Daniels-11, Pierce-10, Rajon Rondo -10). Even Robinson got into a little groove, scoring seven points in 11 minutes.
Rondo had his usual double-digit assist night (11), but the Celtics also got at least three dimes from Pierce, Garnett, Allen and Daniels. The prettiest play of thenight highlighted the effort — as Pierce hit a streaking Allen underneath fo a dunk with 1:19 left in overtime that put the C’s up 108-103 in the victory.
2. Garnett continued to be aggressive: Last season, Garnett wasn’t throwing it down like he used to; he just didn’t have the lift in his knees. This season? He should be sponsored by Dunkin’ Donuts.
Garnett scored six of his eight first-half points at the rim — including a second-quarter dunk on Taj Gibson and another jam following Rondo on the break. Although he backed off a bit in the second half — finishing with eight of his 16 points in the paint — Garnett, who also grabbed 10 boards, established his tone early.
3. Big Baby drew (more) charges: Someone tweeted from Shaquille O’Neal ‘s account during the game, “Big Baby is an offensive foul drawing machine!!” That couldn’t be more right. Glen Davis entered Friday night’s game with a team-leading nine charges (nobody else had more than one), and he added two more to that total in the first half alone. Along with his five steals this season, that’s 16 possessions he’s swung in the Celtics’ favor.
THREE THINGS THAT WENT WRONG
1. Second-half defense: After holding the Bulls to 38.9 percent shooting from the field (14-of-36) in the opening half, Chicago shot 59.5 percent (25-of-42) in the second half.
The Bulls top four performers — Derrick Rose , Luol Deng, Joakim Noah  and Taj Gibson — combined to shoot 19-of-33 from the field (in the second half. The Celtics returned to their first half defensive form in the overtime period, holding the Bulls to 3-of-9 shooting to close out the victory.
2. Centers of attention: I hate to harp on it, but two nights after Andrew Bogut  totaled 21 points and 13 boards on Jermaine O’Neal , Erden and Davis, another talented center ate up the Celtics’ postmen.
Joakim Noah produced 26 points and 12 boards in the absence of Shaquille O’Neal and Kendrick Perkins . If someone doesn’t step up the interior defense, guys like Dwight Howard  and Pau Gasol  are going to have a field day.
In addition, the Celtics got out-rebounded by 12, as Jermaine O’Neal a whopping one rebound in 25 minutes.
3. Pierce couldn’t score on Scalabrine: In the first half, shortly after Brian Scalabrine  received a standing ovation upon entering the game, Paul Pierce tried to shake him at the free-throw line. As Pierce attempted his signature lean-back 17-footer, Scalabrine reached up and blocked the shot.
The crowd paused, as if deciding whether to groan for Pierce or cheer for Scalabrine. I’m sure Scalabrine has seen that move a thousand times in practice.