
^lol, I think this picture is an example of how amped Rondo is to cover LeBron James.
(taken from the website
http://sports.yahoo.com/nba/blog/ball_dont_lie)
...even though Rajon might be giving up some height in this defensive assignment he sure does make up for that with hustle.
The guy did lead the NBA in steals last season, so while he isn't that effective at guarding someone in the post he can still stick with his defender, play perimeter D and help disrupt the other team's offense. Plus, if he ends up with the ball after causing the other team to commit a turnover he can always lead a fast-break.
It is interesting to see Rondo being assigned to guard guys like Kobe Bryant and LeBron James, aka the most versatile scorers on their respective teams. As far as those two's (LeBron and Kobe) play styles differ, Kobe Bryant is notorious for shooting turn-around jumpers and passing out of the post while LeBron likes to drive and dish and shoot spot up jumpers where he has a height/positional advantage over his defender.
In either situation Rondo would be giving up height in what are already almost un-guardable shots, though I guess the fact that Rondo was selected to the All-Defensive first team would mean that he could deal with most anything else, ie. limiting dribble-penetration, cutting off passing lanes, contesting shots, poking the ball away, etc.