Decision-making can be quick, pragmatic, slow, careless. You can hear all the arguments or not. You can do the analysis or rely on intuition. You can mix these approaches.
In any case, if you’re the one deciding in the first place you’re likely to benefit. It’s difficult to undo a decision made. That’s a positive and a negative depending on where you stand.
If you’re going to burn the boats, it’s a risky bet with upside if you’re right. If you achieve first-mover advantage, it’s hard to beat, at least for a while. And in both cases, being wrong will quickly be forgotten and being right (or lucky) is sure to bring reward.
So the lesson is to look for opportunities to decide – rather than to simply react to a decision someone else has made.