Yeah there's going to be a different graph two different curves, one for dropback epa and one for rush epa with the x-axis being % of plays are dropbacks, and you're most likely going to see a big dip in passing EPA as the proportion of dropbacks increase.
You could have a third curve showing dropback_epa*(%dropback)+rushing_epa*(1-%dropback) and look for maxima on that to figure out your ideal proportions
Centralized wearable iProcessor with wifi bubble and encrypted communication with accessory devices. Phone becomes a bunch of sensors with a foldable touchscreen and a big battery, watch gets dumber and cheaper with a bigger battery, both of these communicate wirelessly with a thing you wear on your torso that has an all-week battery and does all the computing.