The D division of A-MART sells batteries. A-MARTs corporate management gives the management of D division considerable operating and investment autonomy in running the division. A-MART is considering how it should compensate James Mak, the general manager of the D division.....

3. Now suppose that Mak has no authority for making capital-investment decisions. Corporate management makes these decisions. Is ROI a good performance measure to use to evaluate Mak? Is ROI a good measure to evaluate the economic viability of the D division? Explain.

I don't know "Is ROI a good measure to evaluate the economic viability of the D division?". can anyone help me?