I'll apologize in advance for not delivering something original for this post. However, the point being made takes priority over creativity. Seth Godin's recent post about decision making should be filtered out as far as it can so that those who have the capability to make a decision but choose not to (for various self-justifying reasons) will reconsider.
One more quick point. When you make a decision don't blame anyone for it. Too often people are influenced by fear from peers/coworkers/management to make a decision. Its easier for most people to appease peers then do something remarkable. Besides, if it doesn't work out there is always someone else to blame.
In advertising and marketing this is the biggest reason for failure.
From Seth's Blog - "Make a decision"
It doesn't have to be a wise decision or a perfect one. Just make one.
In fact, make several. Make more decisions could be your three word mantra.
No decision is a decision as well, the decision not to decide. Not deciding is usually the wrong decision. If you are the go-to person, the one who can decide, you'll make more of a difference. It doesn't matter so much that you're right, it matters that you decided.
Of course it's risky and painful. That's why it's a rare and valuable skill.