Ryan Day will expose the weaknesses of the prior OSU coaches including Urban, Woody, Cooper etc. by focusing on a QB system and ruthlessly discarding and hiring anyone who can help the cause. He'll ultimately replace Saban's brand in time by this focus.
In time football will evolve beyond our recognition to solve for the concussion/brain injury problem associated with the very nature of the sport.
Technology will supplement and largely replace on controversial and missed calls in football and it will be a good thing for the sport.