Al is a project manager and is making activity duration estimates for his project based on his experience six years ago doing some similar tasks. He doesn't want to bother his project staff, who will be actually doing the work. Why is Al headed for a scheduling problem? Question 21 options: Al is heading for project team problems by not involving his staff in the planning process. He is not headed for a problem. Al has the expert knowledge and can therefore do the estimates. Al is not considering elapsed time. Al should be asking the staff to make or approve the estimates for the best outcome