the ability to make decisions swiftly, clearly and effectively without hesitation

Often in my surgical career, I was confronted with life-or-death decisions. In the O.R., when every second counts, delay is not an option: you must make a choice and accept the consequences.

Timely decisiveness is universally lauded:

Nothing is more difficult, and therefore more precious, than to be able to decide. (Napoleon Bonaparte).

… interested in some inspiring tips on choosing decisiveness, and some exercises to get you started?