When you can control the resources and allocate the dice freely you can find strategies that allow you to improve over the unmanaged game. In the example below, 65 people have been processed through the system in 20 rounds.
This might be a victory over 20 rounds, but in reality, operations aren’t finite in duration; what happens over the next 20 rounds?
You can see that the management strategy used above has left little work in progress in the system. In fact, the first 7 of the 9 queues are empty. In order to get more people through the system over the next 20 rounds you will have to start again and build up the work in the system. Having to do this will mean that it is likely that your subsequent throughput will be lower. What is required is a process of continuous improvement that will result in
- Increased throughput
- Reduced work in progress
- Shorter lead times through the system