Boater,
This is a really good question and I have to think about it to give my best answer. But it will involve using total hatchery fish catch rather than ESA impact alone so recreationals don't get shorted, and commercials still catch fish, along with moving towards terminal fisheries and some sort of lower river selective catch. And, my best wish, that the natives survive, and that we survive as well.

I see this whole thing more and more as a series of stepping stones and not one great final solution.

And if there is a question as to whether ESA impact measures can be altered, the answer is YES. I was alive during the original ESA legislation and think we have the cahones to enact change, as citizens now.
http://en.wikipedia.org/wiki/Cojones