that should bolster director and co-writer 
(ROOT (S (WHNP (DT that)) (VP (MD should) (VP (VB bolster) (NP (NN director) (CC and) (NN co-writer))))))
(ROOT (S (WHNP (DT )) (VP (MD ) (VP (VB ) (NP (NN ) (CC ) (NN ))))))