Editors Note: Apologies that this didn't get up sooner, I'll skip this excuses, this is some good stuff from Sax and with the new FanPost FrontPage capabilities I wanted to make sure this received it's due. Good stuff, thanks!
Thought I'd whip up this graph to illustrate how this year's starters have progressed in their usage and efficiency from last year, and I threw in some players from earlier years for comparison. (Markieff Morris and Thomas Robinson show as single blocks because their minutes in previous years were low.) The labels in the corner are suggestive and just there to help you remember which is the "high usage, not super efficient" solid player vs. the guy who scores efficiently but not much.
As players step up to higher usage, their efficiency usually suffers, so going up and to the left is what you expect from a player who is pushing themselves into more central roles. So it was with Jeff Withey and Elijah Johnson so far.
Other players have more unusual development arrows. Tyshawn's huge increase in usage without losing any efficiency was remarkable. Marcus Morris's jump from decent scorer to bucket machine is also visible, and notice Ben McLemore's spot; he's hugely efficient for a guy using so many of the team's possessions.
Kevin Young and Travis Releford haven't changed their usage too much, of course, but they both got a lot more efficient in their roles. Releford progression from not-great option to hyper-efficient wing is pretty crazy, and totally the reason I made this graph in the first place.