Shorthand Engineering Company has been following a design-build approach for its projects for the past two years. At first, the new approach helped Shorthand reduce costs and project times, while increasing customer satisfaction with the finished work. Unfortunately, material costs have risen lately and rework has caused project times to lengthen. When management investigates, they discover that the architect makes numerous small changes in response to evolving customer demands. What specific problems does management need to address? (Select all that apply.)