Commentary

Celtics' defense lost in transition

Allowing too many easy opportunities holding back otherwise solid unit

Updated: December 2, 2013, 11:26 PM ET
By Chris Forsberg | ESPNBoston.com

WALTHAM, Mass. -- Masked by their 7-12 record is the fact that the Boston Celtics have played above-average defense this season.

Scoff if you must, but the Celtics sit in the top third of the league in defensive rating by allowing 101.1 points per 100 possessions, top the league in 3-point defense (32.2 percent) and rank seventh in points allowed per game (96.6).

[+] EnlargeCeltics
Matthew J. Lee/The Boston Globe/Getty ImagesOverall, the Celtics' defense has been better than expected, ranking seventh in the league in points allowed.

The team's Achilles heel is its offense. The Celtics rank 26th in rating (96.9) and are generally an inefficient and inconsistent group on the offensive end. And their woes generating points are leading to easy scoring opportunities for their opponents, hindering their defensive success.

You see, everyone knows that the Celtics are a team in transition. Right now, they're simply struggling with transition defense.

Consider this: According to Synergy Sports defensive data, the Celtics allow 0.865 points per play in the half-court set, ranking seventh in the league. Opponents shoot 43.1 percent against them in the half court and score on just 42 percent of those possessions.

Transition plays have accounted for 14.2 percent of Celtics opponents' total plays and teams are averaging 1.104 points per play in those situations. Opponents shoot 57.6 percent and score on 53.1 percent of their possessions in transition against Boston.

The Celtics actually rank in the top half of the league (14th) in transition defense, but the quantity of those attempts is a concern for first-year coach Brad Stevens. The Celtics have been prone to rashes of turnovers and poor shot selection has allowed teams to attack them off missed baskets. Boston also gets out of sorts when the shot clock gets low.

"I think transition defense can rear its head in a number of different ways," Stevens said. "It starts with the kind of shots that you're getting on one end. Hopefully you're getting shots [instead of turnovers]. If you don't get shots, you're not going to get back and it's going to be a pain anyway. That's why it's the old adage as a coach -- you'd rather just dropkick the ball 20 feet into the stands than throw it away to the other team so that they can run and score.

"But I think we're getting the turnovers [down]. We turned it over 20-some-odd times against Milwaukee the first [meeting last month], 10 the other night. The offense was a lot better, a lot more crisp. We just didn't finish. But that hurts your transition, when it's not. You take bad shots, you take challenged shots, you turn it over, that's going to put you in a predicament."

The Celtics got a double dose of transition education on Monday. First the team spent time on it during a half-hour film session, then used part of its brief on-court session working on it as well.

There are few secrets with transition defense. The key is to simply try to beat the opponent down the floor and protect the basket to prevent easy layups (easier said than done, of course). From there, it's on individual players to read and react. Players have to identify shooters to prevent being hurt on the perimeter by trailers.

One thing Stevens has tried to hammer home to his charges is that, with transition, it's not always about picking up your man. It's about picking up any man.

"I've always said that transition supersedes matchups," Stevens said. "You can't run with just an eye on your guy. You've got to run with an eye on who's most dangerous."

The Celtics have enough individual talent to be one of the better defenses in the league. Their current starting five has put up some extremely stingy numbers in 100 minutes of floor time together. Jordan Crawford could be pegged as the weakest individual defender in that group but the return of Rajon Rondo should solidify that first unit.

The Celtics rank as the top defensive team in the NBA against spot-up shooting, the most common play type in the league. That suggests they are forcing opponents into tough shots and contesting well overall in the half court. To Stevens, taking this defense to the next level is as simple as eliminating the areas that teams score with the highest efficiency, which would include offensive rebounds (a problem area given how undersized Boston is up front) and transition.

Asked what the key was for the Celtics to improve its transition defense, Brandon Bass -- the team's defensive anchor so far this season -- pondered the question for a moment.

"Us getting back in transition," he offered with a coy smile.

If only it were that easy. Despite all the obstacles working against Boston this season, the defense, which many pegged to be among the league's worst, has the talent and ability to rank among the league's best.

For these transitioning Celtics, success this season could be dictated by the ability to improve their transition defense.

Chris Forsberg

Celtics reporter, ESPNBoston.com

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