While this article was originally aimed at product managers, the author concedes that it is relevant to any role.
Essentially, it argues that the key to good decision-making is not just understanding what the correct decision would be, but also how quickly you should make each decision. In other words, you need to know which decisions to agonise over, and which to make quickly.
You can be right 99% of the time, but if you’re wrong the 1% of times when it really matters, you’re not an effective decision maker. The takeaway is that when the stakes are high, you should work a lot harder at making the right decision.