I didnt read your second paragraph.. my bad..
that is exactly my point though... spread defenses (designed to stop spread offenses for simplicity), consistently throughout a season, I dont believe can stop a big OL/RB stable/decent QB1/decent WRs....
That O can still take advantage of all rule sets AND is built to keep the ball away from the high-octane spread O on the other sideline.
this is really 101 stuff. adversaries field a capability, you look at your doctrine and platforms and adapt or bring on new ones. The game now has created an environment for Ds that is essentially impossible to stop Os. Gone is the day of the "irresistable force vs unmoveable object".
So, IF my observation is accurate, and a capability cant be fielded, what to do?
The best way to control a thing, is the ability to destroy a thing. How do you "destroy" a spread O? Keep them on the sidelines because your O can impose their will, play by play, tick by tick on the clock.
Unless they restore balance to the rule sets, there is really no other way.