Behavioral economists have found that too many choices cause inaction and impede decision making. If we can choose from thousands of funds in which to invest, the breadth may be overwhelming and too often we will choose the status quo: doing nothing.
Fewer choices may make it easier for us to act, and act wisely. Likewise, giving leaders and managers too many rules to remember is generally overwhelming. Frequently the result is to tune out and remember nothing rather than confront mountains of information and detail.
Leaders are better off keeping the messages they want applied to a few simple, clear, and direct themes that can be applied across a wide range of issues.