Once a task is finished, the teams/remaining candidates report back to Lord Sugar at the "boardroom" - either following the task's completion, or the day after it has ended - to hear about feedback on their performance and learn the results of their endeavours.
Result - Both teams face an initial review from Lord Sugar and his advisers about the task they undertook, with discussions often including feedback on their performance, any issues they encountered, and any criticism/praise on either the team's effort or the contribution of a team member(s).