The Success to the Successful structure consists of two reinforcing loops which act together as a single reinforcing loop.

The Allocation to A Instead of B results in more Resources to A. More Resources to A enhances the Success of A which enhances the perception that there should be an Allocation to A Instead of B. With the Allocation to A Instead of B there are fewer Resources to B. Fewer Resources to B impedes the Success of B which further reinforces the perception that there should be an Allocation to A Instead of B.

The above redrawn version of the Success to the Successful structure makes its reinforcing nature much more obvious. It is the Success to the Successful structure which is at the heart of so many self-fulfilling prophesies, which are actually the result of unperceived influences on our own part.