1 point (Checkbox question: the correct answer is formed by selecting 1 to 4 of the options] - Why do the vast majority of projects not return the rate of return that the business case promised? No one made any attempt to try and improve productivity im nediately after the change was made The project went over budget, past its deadline, or had excessive scope creep Late delivery shifted some return in time, such that breakeven may not be possible The business case was too optimistic, anyway