I am a bit worried about the toxicity of the plant, I read that it is toxic but goats can still eat the bushy part. I believe if it was a problem for pigs they would not eat it, but I will be penning them up in a mono culture of the stuff.
Post pigs my plan is to follow up with chickens in hope they will reduce the seed bank and clean up after the pigs. Then my thought was replant it into pasture and apply compost tea. I was surprised to read that even some of the local counties use compost tea to control blackberries and scotch broom along road ways, and I thought they only knew how to apply poison :p
After that grazing with goats, or sheep would be in order to eat any of the new broom starts. The neighboring property has a 35 acre field of solid scotch broom so my friends will never be rid of the stuff or their offspring, follow up management will have to focus on making the environment more friendly to the new desired ecosystem.