The November issue of the Harvard Business Review has a good article on how to identify weak points in your strategy. The questions are pointed towards large for-profit organizations, but with slight tweaks, they fit very well for non-profits and ministries. Here are the questions:
Who is your primary customer? Or who is it that you are there to primarily serve – really?
How do your core values prioritize shareholders, employees, and customers? Or, how do your core values determine your priorities?
What critical performance variables are you tracking? This one is usually more difficult in a ministry or non-profit, but it is doable and important.
What strategic boundaries have you set?
How are you generating creative tension?
How committed are your employees to helping each other?
What strategic uncertainties keep you awake at night?
These look to be some decent questions to help you evaluate your strategy.
What are some other questions you use to see how you are doing?