Jill's project schedule for a construction project simply states that it will take her team 29 days total to build a house - 3 days to pour a building's foundation, 5 days to construct the building's frame, 4 days to side the structure, 2 days to roof the structure, and 15 days to complete interior finish work. Jill's boss has called Jill's estimates into question. What are some ways Jill can defend her estimates?