khans2k5 wrote:They do split WS into offense and defense. Ricky has only had an offensive win share over 1 one time in his career (his 81 game season at 2.2). Lawson has only posted less than 3 in his rookie year. Defensively Ricky is higher at 3.6 in his last full season to Lawson's best of 1.8. At the end of the day the gap between Lawson and Ricky's offense and their defense still favors Lawson overall. I'd rather have Lawson's almost 15/10/3 than Ricky's 10/9/5. There are guys in this league that actually use their ability to put the ball in the basket to open up their passing game to rack up the assists. Ricky has the superior vision and passing, yet he has less passing lanes to work with because he isn't a threat to score. The true elite assist men in the game offset it with their own offense and Ricky just doesn't have his own offense to make the full offensive impact other players like Lawson make. He's a good player, but I'm not a fan of guys who make 14 million a year needing other players to perform well for their impact to be felt.
They split Win shares into offense and defense, but that doesn't mean it accurately reflects a player's defensive effectiveness. In fact, the main problem with WS is that it uses fairly spurious data to calculate what constitutes the defensive side of the equation (I do think the offensive side of the equation is pretty decent).
Here is a good article on its flaws: http://ascreamingcomesacrossthecourt.blogspot.com/2013/04/defensive-win-shares-are-completely.html
In a nutshell, a big part of the equation is based on overall team defense along with box score stats that don't always correlate to stout defense. For example, Andrew Wiggins had the second fewest defensive win shares amongst rookies that played 500 or more minutes last season. Adreian Payne and Nik Stauskas, just to name two others, actually had more defensive win shares than he did!
The bottom-line is that Win Shares is not an accurate way to capture the separation between Rubio and Lawson defensively. It's much larger in fact. Had Rubio played with another defensive stud or two, his DWS would probably be much higher because its been weighed down by the inadequacy of his team mates all these years.