Waiting for the 100 percent right and certain solution leads to delay, indecision, and an inability to execute. - Jocko Willink

Get after it.

Once people stop making excuses, stop blaming others, and take ownership of everything in their lives, they are compelled to take action to solve their problems.

The dichotomy with the Default: Aggressive mind-set is that sometimes hesitation allows a leader to further understand a situation so that he or she can react properly to it. Rather than immediately respond to enemy fire, sometimes the prudent decision is to wait and see how it develops.