Read "The Blind Side". The movie didn't touch on most of the best information in that book. Not only do you find some incredible explanations of how the game has changed and why (most you would agree with) but the best statement is about the football conservatives versus the football liberals. To paraphrase: The football conservatives use brawn to beat you to death and do it so well that you would think they have it all figured out (think Saban/Miles and Fulmer) and the football liberals use tactics and skill to overcome the brawn. And, there are some liberals who do it so well as to make you think they have it all figured out.
In other words, several decades ago this same conversation was being had in the NFL between those in the Parcels camp and those in the Walsh camp. Parcels (and I don't think I am spelling his name correctly) was a brawn/defensive kind of guy, and Walsh was inventing the west coast offense (high percentage, short yardage passing plays). Walsh did this so well that he could double the yardage per play compared to the running brawny traditionalists, and dropped the turnover percentage down to match what you could expect by running the ball.
In other words, almost over night Walsh's 49ers changed the way football was played, and few even noticed (those who did notice discarded it as gimmicky).
We are here having the exact same conversation about the current evolution of football.
People will cite Oregon as the reason that the spread won't work against the SEC, but the explanation is simpler than that. Oregon doesn't really recruit all that well on average (compared to the SEC), and the SEC teams severely out recruited them at every position. Speed is great, but it needs to come with mass and strength.
Jones has consistently said, and rightfully so, that he will change his schemes to match his talent and not try to force his talent into a scheme. Whether that works or not with our talent is yet to be seen, but the spread can and will work against SEC defenses.
Top SEC defenses aren't currently equipped to stop similar talent in variable schemes. They are set up to stop similar talent running the ball (speaking generally), or to pound inferior talent doing variable schemes. If you play Bama's game without their talent, you will lose. That is why LSU v. Bama is a punching match. If you expose the schematic weaknesses of Bama/LSU and have talent that isn't substantially below theirs, you have exposed a weakness.
EDIT: I need to be clear about Oregon's recruiting. To get a comparison of the caliber of athlete that Oregon has on hand here is a good benchmark. Take a team and average the last four years of their rival recruiting rankings. Do that for every team in the NCAA for the 2013, 2012, 2011, 2010 classes. You will find that both UT and Oregon are tied at 14.75, and UT is 6th (mid pack) in the SEC. So, if Oregon was in the SEC you could then see the dearth in their talent compared to the top tier SEC recruiting schools (Bama, Florida, LSU, et al).
i disagree with a lot of this.
it's very rarely ever the scheme.
it was the scheme when spurrier first brought the fun n' gun to florida, because sec coaches like pat dye had no clue what the hell a passing offense looked like.
it was the scheme when the bears first ran the 46.
it was the scheme when walsh, as you said, first ran the west coast.
etc, etc, etc.
after a while, it stops being the scheme. the west coast offense may have caught the league off guard in the early 1980's, but that wasn't the problem as the 80's wore on. the problem was montana, rice, craig, taylor, etc, etc, etc. there are plenty of teams who run the west coast offense today that suck.
who runs the 46 today? no one.
there comes a point, where whatever system you are running isn't fooling anyone anymore. the question is do you have superior talent or not.
one of the things that has separated the sec from the rest of the country is that you see everything in the sec. there isn't a scheme you don't see. you have to stop anything from johnny football to alabama smashmouth.
and johnny football isn't fooling anyone now. it's just he's that damn good and a&m wins. the 3 games where a&m played the best defenses all followed the same pattern. a&m rolled early and was shut down late. lsu, florida, and alabama all had the same pattern. difference is they hung up more points quicker against alabama and held on.
all of this scheme stuff is non sense. urban meyer's offense looked a lot different with tebow, hernandez and harvin than without tebow, hernandez and harvin.
the fun n' gun wasn't the same without wuerffel, anthony, hillard, green and taylor.
tennessee's offense looked different without peyton manning. etc, etc, etc.
coaching matters. and when someone truly brings a revolutionary concept, it matters for a short while.
but, by and large, it's players, players, players and players.