Yet the solution is so simple. Let the them spend 20 – 35 % of their paid time on backlog. Let them refactor the architecture. Let them improve the code base. You know, that thing the Lean book talks about, the part that everyone overlooks, the part so critical yet so often overlooked that others wrote books that ride that one aspect home.

But why do that when instead you can just pretend those issues don't exist (or simply fail to understand them) and secure a bonus/promotion/personal favour by cutting "unnessecary" labour costs then celebrate by burbling on about how capitalism "maximises efficiency".