Use template function and load as needed

templates/event-staff.php

@@ -0,0 +1,8 @@
+<?php
+if ( ! isset( $id ) )
+	$id = get_the_ID();
+$staff = (array)get_post_meta( $id, 'sp_staff', false );
+
+$output = '';
+
+echo apply_filters( 'sportspress_event_staff',  $output );