Who is responsible for determining if the conditions are suitable to start a game?

The responsibility of determining if the conditions are suitable to start a game lies primarily with the umpire. The umpire has the authority and training to assess various factors such as the condition of the field, weather conditions, and overall safety for the players and officials. Before a game begins, the umpire inspects the field to ensure that it meets the necessary safety and playing standards, which includes looking for any hazards or issues that could affect gameplay.

While the field crew and coaches may provide input regarding the field's condition or express their concerns about safety, their recommendations do not carry the same weight of authority. Ultimately, it is the umpire's duty to make the final decision on whether to begin the game based on their evaluation and judgment of the conditions.