Actually to get out of this mess we will need to think big. Big enough to do rotations over 7 years while maintaininG production. They are starting to do it in chile where big land is easier to get.
everything that got big started out small at one point. i cant just walk into one of the giant agriculture farms and tell them its better to grow organic, so they should. i would get laughed at most likely or they would tell me its not possible, but i can walk into many of the local small farms and talk/help influence them towards sustainable practices. i know we need to think big, but they need to know i can be done, even on a small scale and gradually over time build it larger and larger, a snowball effect in essence.
There is a famous garden guy in the bay area that is trying to get people to slowly build up their soil over a period of 10 years, I went to one of his classes once for biointensive gardening. If you follow his guidance you can rebuild the soil, grow in a much smaller space.
its not John Jeavons is it? his book is pretty good.