I would try to break down some of the silos.
I think the fisheries should be managed not only as fisheries, but to improve the quality of the water. Farming policy should include not only the economic value of the produce, but also its impact on the lakes.
The lakes, and the Great Lakes basin, really, need to be managed as an ecosystem with all of these things taken holistically into consideration. We shouldn't be managing the fishery only for its economic value and then trying to fix up the water quality in the lakes only by regulating the amount of phosphorus. To me, it doesn't make sense, and it's not likely to be successful.