
(Photo Credit: Andrew Bernstein)
The HEAT’s shift towards unconventional basketball has been met with many questions over the first month of the NBA season. Outside of defense, which has been addressed here, the biggest question mark that continues to surround the HEAT is rebounding. Can a team that rarely plays two traditional big men keep opponents off the boards? Can a championship team be built without a “go-to” rebounder? One would think that last season’s playoff run quelled any of those worries, but that hasn’t been the case.
Conventional wisdom suggests that a team contending for a championship needs to have someone who does the dirty work and cleans the glass. So far this season, the Lakers, Clippers, Grizzlies, Knicks, Spurs and Nets all have players in the top-20 in total rebounding percentage. No Thunder players make the leaderboard, but Kevin Durant represents them on the defensive rebounding percentage leaderboard, coming in at 16th in the NBA. The HEAT are absent from both leaderboards. That doesn’t surprise HEAT coach Erik Spoelstra.
“We’re not built that way. We don’t have a guy that we say, ‘OK, you just get us 15 rebounds,’” Spoelstra said. “We emphasize our defense and finishing the backline of our rotations to the block outs, and the rebound will be made by whoever is closest.”
That philosophy has worked well for the HEAT since Chris Bosh and LeBron James arrived. In the 2011 season the HEAT had the third best total rebound percentage and fourth best defensive rebounding percentage in the NBA. Last season the HEAT finished sixth and tenth in the respective categories. The HEAT have been successful without a traditional rebounder because of its approach and lineup versatility.
“The way we rotate on defense, sometimes it forces our perimeter guys to have to block out bigs. Our perimeter players are very important to the success of our rebounding,” Spoelstra said. “If they get over 20 rebounds, we usually win the rebounding game. But it all works together. Each guy has to sacrifice for each other, putting bodies on them and then we have to have multiple pursuits, even for balls that aren’t necessarily in your region.”
Over the last 20 years there has been a devaluation of offensive rebounds around the NBA. The league-average offensive rebounding percentage in 1992 was 32.9 percent. That was down to 28.9 percent in 2002 and 27.0 percent in 2012. Coaches would rather their teams get back on defense than fight for an offensive rebound.
The HEAT have followed this trend and have not finished with an above-average offensive rebounding percentage since 1998. That’s not to say the HEAT completely disregard the offensive glass, it’s just not a priority.
“We have rules to try to get our defense back and set. But, we also want our guys being aggressive. If they have an opportunity in the paint to get us another possession, we encourage that,” Spoelstra said.
So how are the HEAT doing this season? The HEAT currently rank 19th in the NBA in defensive rebounding percentage and 18th in total rebounding percentage. On the surface, it looks like the HEAT are in big trouble. But as we dig a little deeper, things don’t look so bad.
Take a look at this chart. The red section represents a defensive rebounding percentage above 73.7 percent, which is where the 10th ranked Bulls sit. The yellow section represents anything below 72.1 percent, which is where the 21st ranked Jazz are. In this case, red means good and yellow means not so good. The size and color of the dots represent days off before the game. The larger and darker the dot, the more days off before the game. For example, the HEAT had three days off before the Milwaukee game and zero days off before the Houston game.

(Click the the image to enlarge)
Holy outliers!
As you can see, the HEAT have nine games that would be in the top and middle thirds of the NBA pack and only four that would be in the bottom third of the league. Those two games swimming in the deep end of the yellow sea appear to have a lot in common.
The HEAT played the Denver Nuggets twice and twice the HEAT struggled to secure defensive rebounds. Denver is the best offensive rebounding team in league, but their success against the HEAT is still staggering.
What follows is cherry-picking at its finest, but bear with me. The two Denver games were both on the second night of back-to-backs, which has a significant negative effect on defensive rebounding, and they appear to be significant outliers. In fact, those two games are the two worst defensive rebounding performances with the current core. If we remove those Denver games for a second and focus on the other 11 games, what does the HEAT rebounding picture look like?
In the remaining 11 games, seven have been against above average offensive rebounding teams. Still, the HEAT have managed a defensive rebounding percentage of 75.4 percent. That mark would be the highest in the NBA. The HEAT’s total rebounding percentage would be 51.1 percent, the HEAT’s exact mark last season.
In the real world, the HEAT can’t just erase the Denver games. They happened. However, as those games become two of 50, 60 and eventually 82, their effect on the HEAT’s rebounding numbers will become less harsh.
The HEAT attack things differently than other teams, because they have to, but also because they can. Coach Spoelstra often talks about sacrifice when asked about rebounding; egos, he says, are left at the door.
“It’s a team. It’s a collective.”

















