There are a few other principles in decision making
There are a few other principles in decision making. One of them is called occams razor which urges you to not focus on complex theories and ideas and potential outcomes but rather focus on the simplest one which is usually a better one. This also saves time. There is another principle called Hanlon's razor which urges you to not look at any causes of problems as the fault of anyone but rather the lack of knowledge. This helps you avoid placing blame on another person and helps you focus on making the decision.
— from Decisions & Choices (Decision/Choice/Focus/Forethought/Consequences)
In the book
Keep a couple of thinking tools on the shelf: break a problem down to its irreducible parts, or ask what you most want to avoid, or trace the consequences of the consequences. And lean, always, toward simplicity — the simplest explanation is usually the best, and if a solution isn't simple it is probably not the right one; assume of others not malice but a plain lack of knowledge, which frees you from blame and gets you to the decision. Guard against the mind's built-in distortions, because they hijack decisions silently: loss aversion, which makes you fear a loss more than you value the equal gain; the framing of the same facts in different lights; and the anchors the first number drops in your head — and beware, above all, overconfidence, with its dismissal of bad news and its illusion of control. — Decisions & Choices (Decision/Choice/Focus/Forethought/Consequences)