There was a recent article on ESPN Insider by Neil Paine (Basketball-Reference.com Blogger) on most overrated offensive players -- what he referred to as his "All Ball-Hog Team". Basically, he found players who were rated highly by conventional offensive stats, but rated much worse according to statistical plus/minus rating for offense (a regression-based predictor of plus/minus impact using box-score stats). http://insider.espn.go.com/nba/stor...kins-league-least-productive-scorers-all-time Yao Ming got a mention. Fair or unfair? [rquoter] Yao Ming | C | NBA career: 2002-11 Yao was always a PER darling, notching a career mark of 23.0 and never dipping below 20.0 in any full season, but his career regularized offensive plus/minus was a mere minus-0.5, meaning he actually brought his teams down on offense relative to an average player, despite scoring 19 PPG on 52 percent shooting. Why? Look no further than his 9.6 career assist percentage -- Yao's lack of passing touch out of the post made his Houston teams easier to defend. It's easy to ignore the importance of ball movement while evaluating an efficient, high-volume scorer, especially when it comes to a big man, but the lesson here is that passing ability matters. Among players with equal PER scores, it can make a surprising amount of difference. [/rquoter] Paine explains that Yao had a very poor assist rate relative to the number of touches he got, and further according to the adjusted +/- his didn't appear to have a very positive impact on offense. Conventional wisdom with Yao Ming is that he was a very talented offensive player, dominant often times in the low post, who could not be guarded effectively with single coverage and who possessed a soft shooting touch and good passing instincts. The plus-minus stats which rate him less favorably seem to be backed up by the fact that the Rockets never had strong offensive teams when he was the main guy, and that we often struggled to figure out how to utilize him effectively. In defense of Yao, during his career he also garnered a reputation for being soft on defense from some quarters, but the same plus-minus numbers which say he was not a great offensive player indicate that he was one of the top defensive players at his position throughout his career.