different approach

themes/visgroup/single-team.php

@@ -40,8 +40,7 @@ the_post();
                             'meta_query'		=> array(
                                 array(
                                     'key' => 'group_head',
-                                    'value' => '"' . get_the_ID() . '"',
-                                    'compare' => 'LIKE'
+                                    'value' => get_the_ID(),
                                     )
                                 )
                         );