TQM, 6S, Lean or how about FISH! They’re all good when fully engaged. A mixture of fad and fact. Isolate the tool that work and stop wasting time debating the merits or demerits of each.
The pursuit of perfection is an illusive dream with actual moments of bliss. Embrace the moments, linger as long as possible to recharge for the peak to be scaled. This is a human aspiration (aka “happiness) in our professional and personal facets of life.
I can’t help but wonder how much ROI or LEAN before we reach a state of souless anorexia or worse, death??? Life is a stage…eventually the play ends. At that moment, on what will we reflect?