I'm proposing that everything has equal advantages and disadvantages. Good management is having strengths affect critcal spots and weaknesses affect non-critical spots. There are a lot of real-world examples (as politics shows), so I won't go about posting them here. Also no one can know all the strengths and weaknesses of any decision, just the most likely ones, primarily from trial and error. Calculation is secondary because math must still go through the scientific method for proof.