And when on the receiving end of the deliverables list, it's always a good idea to make sure they are actually deliverable.
There's nothing worse than a task where you can deliver one item and then have to rely on someone else to be able to deliver a second. Was once in a role where performance was judged on closing tasks; getting the burn-down chart to 0, and also having it nicely stepped. Was given a good tip to make sure each task had one deliverable and where possible—be completed independent of any other task.
You get what you asked for, or you didn't sufficiently define it.