Where is BballTim when we need someone to dispute the validity of this article?? 
What we really need is that Fatjohn guy, the one who has a general disdain for stats unless they make Rondo look bad.
"When looking at the numbers and watching the tape, you notice that Rondo's inability to make a jumper, or even shoot one at times, really hurts him in pick-and-roll situations. Opposing teams started picking up on Rondo's unwillingness to shoot and they started going under ball screens at an extreme rate. In 2009-10, defenses went under Rondo's ball screens 38 percent of the time. That's a pretty high number and that increased during the course of last season as defenses went under screens 50 percent of the time this past season. With defenders going under screens, Rondo was forced into turnovers:"
Yes, there he is.
So this guy's premise is that Rondo turns the ball over a lot in pick and roll situations because defenders go under screens because he's unwilling or unable to shoot when they do. I checked out 6-7 other point guards, the better ones in turnover rate for pick and roll (like Chris Paul) are around 14%. so 21% isn't that great.
Three of the other 6 guards I checked were between 19% and 22% (close to Rondo's rate). They were Deron Williams, Stephen Curry and Steve Nash. Any thoughts on those? Do defenders go under picks on them because they can't/won't shoot? Or maybe there's more to what's happening than his explanation?
Also, the guy starts out by saying that Rondo's turnover rate was up which shows he's struggling with turnovers. Rondo's turnover rate went up because he's shooting less and passing more, it's simple math. His assist/bad pass ratio actually increased last year.