There are pros and cons to both the roulette wheel and rank selection approaches to choosing a quarterback. Roulette wheel selection has the advantage of being a random process, which gives teams some measure of luck. Rank selection, on the other hand, is more likely to produce a better quarterback, as more talented quarterbacks are likely to be ranked higher on draft boards. However, roulette wheel selection can also lead to teams selecting a lower-quality quarterback, as they may end up with a player who is not as good as others available at that position.
Rank selection, on the other hand, is less likely to lead to such a situation. Overall, roulette wheel selection has its advantages and disadvantages, while rank selection is generally considered to be better in terms of producing better quarterbacks.
