It's probably not the most interesting subject, but supply chain dynamics is very important. How to allow the growers to do what they do best (grow) and still make good money by not losing it to the middle men/women. I see two basic choices right off the bat, and maybe investigating more would be interesting. One is keeping sales within a specific distance from the farm. The second is finding a fast, inexpensive way to get products to market further away. These are currently done, but it's far from ideal.
Also, not everyone that grows stuff likes to interact with the permies, so facilitating that in a way that doesn't rob the grower of all the
profit would be really useful.