Take your time to think through something and when you're ready, act fast. Absence of earnestness often can lead to failures I can think on - recruiting vs. terminating, hasty judgments, arguments, etc.
Terminating people for example, can be one of the most difficult parts of an entrepreneur's journey. It can be important for a company to move forward but there are moments that are never devoid of emotion.
The final decision quite often consumes a lot of time than it should take. But usually as soon as the decision is made, you tend to ask yourself "why didn't I do this before?"