Category Archives: coachbait!

Peer performance pressure, and the limits of coaching theory

Feagin

Last season, this offense made its shots and took outstanding care of the ball. What could possibly have gone wrong?

Years ago, when rebound percentages were still seen as newfangled, the first question I was ever asked by a Division I coach was what the best target numbers are for both offensive and defensive rebound rates. I don’t remember my response, though I would guess I delivered, as requested (I was thrilled simply to have had my opinion solicited), two numbers spelling out what the team “should” be doing.

I now think that was a mistake. True, thanks to Dean Oliver, we know that the four factors in basketball are shooting, turnovers, rebounds, and free throws, and we rank offenses and defenses on each of those metrics.

But of late, however unconsciously, I find I no longer regard all of the factors as a must-watch sequence in and of itself. Instead, I’ve elevated shooting to a co-starring role above the title in this movie we call hoops.

Furthermore, I’ve collapsed turnovers and offensive rebounds into one quantity and elevated that into the other co-starring role, one I call shot volume. (In this two-factor amalgam, offensive rebounding is clearly the junior — or at least downstream — partner.) And, for better or worse, I now regard free throws as an occasionally dispositive but basically exogenous event, kind of like a power outage or visiting relatives.  Continue reading

Shot volume index

breycal

Masters of the SVI genre. (AP)

For the time being I’m taking what I’ll call a shot volume index out for a test drive to see if it can be of any use. The SVI can be thought of as the number of shot attempts a team would record in 100 offensive possessions with average shooting accuracy (determined collectively by 75 teams in major-conference play in 2016), and, most improbably, zero free throws.

I need hardly add that I’m far from the first observer to look at and measure this aspect of the game. Consider this merely one more dish at the buffet.

Last February when I was juggling Tuesday Truths and other stuff, I whipped up a little shot volume casserole in the microwave, and it was, I trust, passable. But with a bit more time to prepare, I’ve come to prefer the slow-cooked SVI and its fair degree of accuracy in predicting how many points your team will score. Also, allow me to extend a big thank you to Svi Mykhailiuk at Kansas for cheerfully loaning his name to this undertaking.

Great offensive rebounding teams that commit a turnover before they attempt a shot don’t get a chance to display their greatness. Conversely teams that excel at taking care of the ball but place a transition-D-focused ban on offensive boards see their shot volumes suffer relative to competitors with identical or even significantly higher turnover rates. The SVI proudly carries this brand of sequential flow-charting horse sense in its DNA. Continue reading