During the pregame conference, which action is considered illegal?

The head coach not attending the pregame conference when they are available is considered illegal because it is an essential responsibility of the head coach to participate in these discussions. The pregame conference is a crucial time for coaches to communicate with officials, clarify rules, and address any potential concerns regarding the game. By failing to attend when they are available, the head coach not only neglects this responsibility but also undermines the integrity of the pregame process, which is designed to ensure that everyone is on the same page before the game begins. Attendance signifies respect for the game and adherence to the rules set forth by the governing bodies, which is why this action is deemed illegal.

In contrast, having an assistant coach or a team captain attend is permissible as it allows for representation of the team, while sending someone in place of the head coach could be acceptable under specific circumstances, but it is always preferred for the head coach to be present.