Currently, teams in the Power 5 conferences rely on other teams to make money for them. It's basically conference welfare. These teams are not motivated to improve because they know they will be getting a paycheck no matter what. With this system, these schools are forced to pick themselves up.
Far be it from me to say that American Rules Football and Soccer/Football are even in the same league. Die hard fans of either sport would attest to that for their own personal reasons. However, Barclay's English Premier League ( actually English Soccer/Football as a whole) does do something that might work for NCAA College Football, a system of promotion and relegation (demoting). Here is how it works in a nutshell...
Barclay's Premier League is the top league in the United Kingdom. At the end of every season Barclay's Premier League takes the three worst teams in the standings and demotes/relegates them out of the league. This leaves the league with a three team vacancy which is filled by promoting the the top three teams from the nPower Championship League (United Kingdom's second most prestigious league). The three ousted Premier League teams then go to the nPower Championship League. This system of relegation and promotion works for 1) Barclay's Premier League; 2) nPower Championsip League; 3) nPower 1; 4) nPower 2 and makes the game both different and exciting every year. Teams can reach great heights by climbing their way through the leagues until they ultimately reach the English Premier League.
Now imagine for a moment if NCAA Football did the same thing. A team like Ohio University could be promoted to the Big 10, Colorado State could be promoted to the Pac 12 or a team like Southern Florida could be promoted to the SEC. What if Florida or Vanderbilt could be kicked out of the SEC and go to a lesser conference? Imagine if Ohio State or Michigan were relegated from the Big 10 or USC or Oregon from the Pac 12? Now when you add the fact that a college football playoff is only another season away, this adds some spice to your conference affiliation. The Playoff will take the nationally ranked top four teams period, done deal. But we would be fooled to think that these teams would most likely not be from (every year) the Big 10, Big XII, Pac 12, and the SEC. Promotion could all but ensure promoted teams at least a shot at a top 4 finish just from strength of schedule alone!
So with some facts on the table and pros and cons to digest I ask you...Should the NCAA in addition to the new playoff system forthcoming consider implementation of a Promotion/Relegation program?
In addition to the above argument, this imaginary playoff system that is modeled from the English Premier League would cause problems like conference biases. How would you rank conferences?? That would cause problems and an uproar by fans.
Also, travel... The teams in each conference are in that conference for a reason. They are in the same region to make travel easier. It doesn't make sense to change conferences and make teams have to pay unbelievable travel expenses to travel across the nation to play games every week.
I just don't think your promotion/regulation idea would work in the college football setting.
Having a promotion and relegation system in Division 1-FBS football makes no sense. Having it be between conferences is nonsensical, because conferences are essentially just groups of colleges in the same region. Further, one of the most important parts of promotion and relegation is the fact that there are no playoffs (unless there is a tiebreak required) - the season is double-round robin, meaning each team plays each other twice. Doing so in college football with upwards of 120 teams in the FBS alone (and over 240 if you could FCS) would be impossible and unfair.
Finally, such a system would encourage even more academic fraud and bribing of recruits than there already is - and the present issue undermines the integrity of the game.