This isn’t a direct response to your question, I just had a thought about the “nothing inside the range of what we think of as a normal workplace” line.
There might be plenty of middle ground available, but I would expect virtually all of those solutions to consistently fail. I expect this because people are mostly going to continue doing what they were doing, with as few adjustments as possible. So people will usually do the same thing and just call it the new thing; or if it is an additional thing do the absolute minimum or completely ignore it; if they do have to put real effort into whatever the new thing is they will take it out of something else.
The appeal of radical solutions is that they make it very clear that both the process and the incentives have changed at the same time, so doing it the old way is impossible.