Was Capacity Planned Accurately?
When you have a higher demand for resources than you planned for, it can not only increase costs but also put projects at risk for not being completed on time. This means it's really important to ask the question, “Did the projects have enough of the right resources?” When a project requires significantly more resources than planned, the simplest answer is that you just underestimated the work. Maybe the second phase of a new IT project actually took a developer two weeks instead of one. If you struggle to estimate certain special skills and resources, connect with experienced project managers and ask for their guidance in estimating required resources.
It’s also possible that in the process of completing a project, bigger issues are discovered that require more manpower or special skills to resolve. This isn’t always something that can be avoided, but you can do more to prepare for projects that are more likely to have critical issues. If you have a project that had just the right amount of resources, give yourself a big high-five. This is not an easy thing to do. Whatever process or calculation you used to estimate resources for that type of project can be applied to future project plans.