Josh Austen has an interesting take on Radical Simplicity
These are my personal theories on software delivery with an emphasis on achieving higher efficacy without the pitfalls of imaginary and subjective metrics (story points, T-shirt sizes, etc.) that are endemic to the software industry.
Because these imaginary metrics can (and have) led to unnecessary stress and questionable business practices, I firmly believe that the software industry cannot enjoy substantial employee loyalty until employers shed imaginary metrics in favor of making the software delivery process as unencumbered as possible without sacrificing stakeholder needs.
This aligns with my thoughts that we should be working on delivering valuable software, where the return massively outweigns the value of any estimate. If you come up with an idea that will save $500K/year, does it really matter if it takes one day or 1 week to implement? The cost of delay in getting the valued savings is nearly $10K/week, so getting agreement on the number of story points it will take to deliver seems counter-productive.