What must a new person do if they switch with an alternate during the event?

When a new person switches with an alternate during the event, they are required to participate in all remaining events for the day. This ensures that the competition maintains its integrity and that all teams have a fair opportunity to compete with the full complement of participants. By involving the alternate in all events, it promotes teamwork and adaptability, key attributes in lineman work and competition.

Option A, taking a break, would undermine the structure of the event, where continuous engagement is crucial. Option B, performing only specific events, does not align with the competitive format that necessitates full participation to maintain team dynamics and performance consistency. Option D, leaving the competition, would not only be detrimental to the team but also disrupt the flow of the event. Thus, fully engaging in all events is essential when an alternate joins to uphold the spirit and rules of the competition.