Were they ever a good offensive rebounding team (in the Big Three Era)? I'm not sure the 14.4 mpg and the 1.7 ORB Powe averaged in '07-08 really made that big of a difference.
Here's our offensive rebounding percentage and our league rank in each year of the Big Three era:
2007-08: 26.6%; 17th (but about league average)
2008-09: 27.9%; 7th in the league
2009-10: 22.8%; 28th in the league
2010-11: 21.1%; 30th in the league
2011-12: 21.5%; 30th in the league
Danny appears to be right; when Leon left after the '09 season, our rebounding took a pretty substantial hit. I don't know if that's due to a change in philosophy, or if it's solely personnel related (replacing Powe with a perimeter player like Rasheed didn't help a lot.)