Offensive and Defensive Efficiency: Narrow the focus for your players.
Coaches have been charting OER (Offensive Efficiency Rating) and DER (Defensive Efficiency Rating) since at least the early 1970’s. And really, it’s not a big deal, in and of itself because it’s only dividing the number of points scored-OER (or given up -for DER) by the number of possessions. So, in a 70 possession game,…
