We now know enough about cattle management to understand that we can massively augment the potential changeover. The process includes forest grooming that opens the canopy to sunlight, sheep grazing to knock down weed cover growth and tight cattle grazing to chase whatever grass appears. Throw in deer grazing to hold back tree growth as well. obviously as the grass assserts itself, the cattle herd size will increase accordingly. As seen, it is all biologically complicated, but all this is already working and human management is now catching up. Again a large herd is maintained and humans attend to scare of preditors. winter foder can be silage made from bullrushs whose productivity is better than corn. Hay can also be brought in to roll out and introduce grass seed when appropriate.