The planning phase of a project is very important. The planning phase states everything that will occur and needs to be done. This is something that everyone involved needs to see so that they know what needs to be done when and remain on the same page. It is also when costs are estimated so everything needs to be stated during project planning. I agree that going back to earlier activities isn’t moving backwards but it could cause a slight delay and in the example stated cost more money than what was originally estimated. These things could start a slippery slope that would not have occurred if planning had been extensive in the beginning to make sure that the people you needed would be present when you needed them. It takes time and resources to bring in new people in and bring them up to speed with what needs to be done.