How can managers monitor the appropriateness of a strategy over time?

The most important way, in my opinion, is making sure that the goals are in harmony with what the organization is doing on all levels. Do their goals match their policies (financial, employee, vendor). Second in importance might be making sure the ongoing level of risk is appropriate, and do not over-commit or under-commit resources by finding the needed ROI. Third, the strategy needs to be flexible. For example, when a church puts into writing their by-laws, employee manuals, constitution, or whatever they have to keep the future in mind. So many organizations set up these documents in reaction to past issues. While I understand the reasoning, I absolutely believe that it is wrong. You cannot build an organization for the future while looking back. Ever tried driving your car using only the rear-view mirror? Driving this way seems kind of goofy. Churches are not alone, but they are my wheel-house, and they make the same mistakes other organizations make.