Just thinking out loud here. I have a theory, without real proof. I don't really like the windage estimate of how "athletic" a given player is, when looking at his ability to cause turnovers. Almost any kid that plays in the back court of a BIG team is an athlete, period. Sufficiently an "athlete" to get to the right place to steal the ball occasionally.
Here is what I think: As our general defense gets better, opposing teams have to take more chances with the ball to score. Hence, our steals go up. Against the RJ lead teams, our defense, and offense sucked. No need to be careless with the ball to win a game against us. Against our better defensive teams, opponents had to take more risky passes to get past the Purdue defense, causing more turnovers.
What this means is that the degree of mythical "athleticism" has little to do with getting turnovers. After all, RJ was a considerable "athlete" and yet, his steals were noting to be excited about.
If true, we should see our steels last year be better in the second half of the year as our defense improved and our offense clicked. Of course, the teams we played were significantly better teams in the second part of the season than the first, so maybe it will be a wash. Anyone want to see if that was the case?