Sorry. I was going to leave but this dumb and simplistic. The play book and blocking are 100% married.
If no matter what your spouse does, you do the same thing, than you're marriage is probably F;ed. Yes, when its working great, it works, but when trouble sets in, it doesn't matter.
Its the same thing with the playbook. Yes, the playbook ALWAYS matters. In fact, it matters more than the blocking.
Its why there are phrases such as "scheme a guy open" and why offenses invented draws, going on 2, moving the pocket, all designed to help an offensive line, The playbook always matters.
ESPECIALLY at Iowa State where you are not going to be able to line up and simply whip the other guys ass for 4 quarters physically on a regular basis.