What is the effect of having secondary and extended coverage for all obvious plays?

The correct answer illustrates that having secondary and extended coverage for all obvious plays does not improve the quality of refereeing. In the context of officiating, secondary and extended coverage refers to having additional referees observing the same play from different angles to ensure accurate calls. While one might assume that increased coverage would lead to better officiating, it could instead create situations of conflicting judgments or unnecessary complexity in decision-making.

By not contributing positively to the quality of refereeing, this answer emphasizes that extra coverage in itself does not guarantee better accuracy or improved call quality. Referees may become reliant on the presence of additional officials and may not develop the same level of focus and decision-making skills that come with handling calls independently. Simple plays can often be more effectively managed with clear communication and defined roles, rather than overwhelming the team with excessive coverage that could lead to confusion or hesitation in making calls.