In the movie Wall Street (1987), Gordon Gekko (played by actor Michael Douglas) argues: "[G]reed-for lack of a better word-is good. Greed is right. Greed works. Greed clarifies, cuts through, and captures the essence of the evolutionary spirit. Greed, in all of its forms-greed for life, for money, for love, knowledge -has marked the upward surge of mankind." Certainly, greedy heuristics are a valuable algorithmic tool for finding approximate solutions to challenging optimization problems. However, for this problem, a greedy approximation is not only unnecessary-the exact solution is of comparable computational cost and easier to implement-but also leads to qualitative failures. Using the exact approach presented here, we obtain the desired results central to Twyman et al.'s study and describe the discrepancies that result from the use of the greedy heuristic.