I think it was a tad unfair to compare Jordan, in his seventh year in the league, to a rookie who hadn't even played one game in the league yet. How about we compare their stats from the combine.
Jordan: 6'9.75" without shoes, 6'11" with shoes, 250 lbs, 9'5.5" standing reach, 26" no step vert, 30.5" max vert
Willie: 6'11.25" without shoes, 7'0.5" with shoes, 242 lbs, 9'3" standing reach, 31.0" no step vert, 37.0" max vert
In Jordan's freshman, and only year at Texas A&M he averaged 7.9 ppg. In Willie's freshman year at Kentucky, he averaged 8.3 ppg.
As you can see, Webber didn't have a freaking clue what he was talking about if your comparing apples to apples. Lets see where Willie is in his seventh year in the league. There's no doubt that Willie has to get stronger, and learn to rebound better. But he's not that far from where Jordan was in his first couple of years in the league.
How about Tyson Chandler. His rookie year in the league he averaged 19:33 mpg, 6.1 ppg, and 4.8 rpg. No great shakes there. How about his combine results.
Chandler: 6'11" W/O shoes, 7'0.5" W/shoes, 224 lbs, 9'3" standing reach, 31.0" no step vert, 33.5" max vert. And we thought Willie was skinny. Chandler turned out OK don't you think? I remember people talking about how Chandler gets pushed around in the paint and how he needed to get stronger and rebound better. Those things don't happen overnight.