A typical professional National Football League team has three quarterbacks on its roster.What is one reason why they might not have a fourth quarterback?

Question

Quizplus · Accepted Answer

A team typically carries three quarterbacks because the third string quarterback is usually there for insurance in case one of the first two gets injured or performs poorly. The marginal product of a fourth quarterback (i.e. the additional benefit of having them on the roster) is likely to be very low since they would rarely see any playing time or contribute significantly to the team's success. Therefore, it does not make economic sense for the team to invest in a fourth quarterback.

A Typical Professional National Football League Team Has Three Quarterbacks