Resource shortages are one of the most common problems I encounter when analyzing a project business. This is also the easiest problem to solve. Not only is it simple, the solution is also largely free. All businesses have a hidden resource pool that is just waiting to be put to use.
Little’s law states that there is a connection between the number of occurrences in a system (P), the throughput of the system (T), and the average time an occurrence spends in the system (L).