This year, Len has produced offensive boards at about only 55% of the rate that Tony Bradley does (TB is also higher on D-boards). Len does some things better, of course, but this isn't something where he even approaches Bradley (For comparison, Vonleh's rebounding rate this year is just a little ahead of Len's).
I read a PeachtreeHoops article from September bemoaning Len's terrible hands. The most representative sign, they argued, was that Len frequently would just bat the ball back on the offensive boards, usually with very little touch, because while he could reach the ball with his size, he's learned that he often can't come away with it cleanly. There was also some dissatisfaction with his ability to catch/finish on the pick and roll. (Nevertheless, Len has improved his near-the-rim shooting percentages greatly this season, since that article was written, so maybe this critique is not as applicable as it once was.) The most amusing thing I found on PeachtreeHoops when looking around for thoughts about Len was a couple of commenters wishing they could have a young big like the Jazz's Tony Bradley.
btw, it could be argued that the Jazz NEED a high-rebounding center given their deficiencies on the board elsewhere throughout the roster. Maybe this was the primary reason the Jazz moved on from Udoh in favor of Davis this past off-season (Udoh only rebounds at 57% of Davis's rate for his career).
