I created a custom report for Team Foundation Sever 2010 to visualize your workflow in order to identify bottlenecks
Identify bottle necks
This indicates a bottleneck in testing there is work stacking up for the QA department.
This report will tell you at a glance where to take action.
As you see in the picture above no clear “steps” for committed are noticeable in the above chart. The chart below shows a more healthy example.
You also notice that there is an inventory of untested items building up.