Watch college football... a bit easier to digest.

Closer to home, it is fascinating to watch Chip Kelly's and Lincoln Riley's offense.
They run basically the same thing over and over again with just tiny little wrinkles here and there.
So it is "easier" to grasp.
But they do look at where they have the numbers advantage and have zone and man routes in the same play.
Everything setup by the same run action for their respective teams.