Tips and Tricks: Changing Constraints Back to Normal 
(Toney Sisk) Now you’ve done it. You created a number of tasks in Project 2007 using start dates that you entered manually. Or maybe someone handed you a schedule with many “Must Start On” constraints applied to tasks. Unless you have a good reason to use non-default constraints or manually entered dates on tasks, it is best to let project figure out the proper constraint and dates after you set up the relationship between tasks. Project will typically apply the “As Soon As Possible” (ASAP) constraint, for example, to tasks, because this constraint best reflects how most tasks are typically scheduled in the real world.
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