I concur that offense since the days of Montana and Marino has altered the offense play scheme for the better.
However, why do schemes always need to change?
Brilliant adaptability to those changes.
Offense or defense; what adaptation forces sheme change? They all do.
Does defense win championships? The NFL number one offense versus defense in the championship game has mostly gone the defensive way. But, this does not prove anything. There are well devloped arguments on either side of the ball.
After that it is philosophical. Will an organization or university want to fill the stands with offensive explosions? What is more exciting run and gun scoring or defensive hangers --- both as stressful for the fans.
An organization will bet where it's best chances lay and sell out on that plan.
For me, if I had to pick where to lay the best talent I would follow the ilk of Paterno"ism" and focus on defense.
Can't win without points and a fresh defense. Ask Osbourne, Paterno and so on. The pass is pretty but the run will win the game. An option guy like Gill should get this.
Explosive offense can be the future of football but the D still needs to allow for the win.
It is very rare --- the undefeated season but my best guess says defense will give you a better chance than a wide open offense. Id rather see Bama win 63 to 21 rather than 53 to 52. The 21 tells me a team has good balance on offense to allow the D to perform. I.n that sense offense is the future of football.
Just my speculative musings.