As workforce management calculates the number of staff required to support a contact center, they have to look at 4 critical factors. The first is the FTE required to do the actual work. In a perfect world, this would be your final number. However, that number has to be grossed up, significantly, to get to the total number of heads you actually have to employ to effectively run a contact center. The other factors that cause this number to balloon are: Lost time, Shrinkage, and Idle Time. In some contact centers, the FTE required for the actual work is only 50% of the employees being paid!