He is correct ^^
I try to run plays that will beat cover 2, cover 3 and man with each route when I pass. When I run, I just want to get "hat for a hat" aka one blocker for one defender to the side I'm running. You can also alter your routes, so say put your slot on a streak and your flanker on a fade vs cover 3.. or a slot streak vs cover 2. Fades also seem to get guys off blocks better vs bump n run. Motion beats bump and run too, as well as crossing routes. The KEY to scheming is to run several plays out of the same formation or a formation very close to it so that you aren't tipping off your plays.
For example, if you use a run play with motion then motion someone when you're going to pass as well to keep the opponent off-guard.