Many times it is very hard to be productive and being able to achieve the goals that are set forth due to the fact that there are too many things that needs to be done.
Lifehacker published article that How Priorities Make Things Happen. Main theme idea is that by really thinking through what is the real priority that is either do or die can make it easier for people to give visibility of what needs to be done.
It also helps clamping down the meeting as well as achieve productive meetings as quoted from the article:
When there is uncertainty or disagreement, reframe the discussion around the priorities using questions like these.
* What problem are we trying to solve?
* Does this problem relate to our top goals or is it a distraction?
* Is this problem important enough to warrant changing our priorities?
* What is the simplest way to resolve this that will allow us to meet out goals?
* If we're struggling to meet our goals, which goal can we drop down to Priority 2?
Also, setting the proper priorities with good fundamental will involve saying no to many things as shown here.
One effect of having priorities is how often you have to say no. It's one of the smallest words in the English language, yet many people have trouble saying it. The problem is that if you can't say no, you can't have priorities. The universe is a large place, but your priority one list should be very small. That small list means there are thousands of good ideas that must be denied to focus your energy on the ones you've chosen to pursue. If you continually say yes to ideas that do not match your priorities, you are saying yes to failure. If you want to change your priorities, that's one thing, but if you are constantly changing them then they were never priorities at all. You did not think deeply enough about them if, emotionally, they are easy to change every few hours. So a fundamental law is this: if you can't say no, if you can't protect your priorities, you can't make things happen.