Garbage Can Model Decision Making

What does the phrase 'If all you have is a hammer, sooner or later everything starts to look like a nail' imply in the context of decision making?

Can you explain the garbage can model of decision making and its significance in organizations?

How do organizations typically go about making decisions according to the garbage can model?

In what ways do decision makers justify their existence within organizations?

What are some factors that lead to suboptimal decisions in organizations?