U I Fashions is a global fashion retailer that operates through physical stores spread across various cities. If the company uses an output control system to evaluate the performance of its stores and explore growth opportunities, which of the following difficulties is it most likely to face?
1) High cost of individual interaction
2) Rigid routines that create problems for managers to function
3) Lack of accountability by subunits of the firm
4) Difficulty in obtaining timely performance data