His play needs more than incidental music and sound effects.
The play doesn't need them and would probably be more effective at two-thirds its length.
It is just as clear that John's play needs a rewrite.
This play just needs to end and we need to go on.
This play needs space, which is the last thing available in the crowded red zone.
In any case, the play needs to have more at issue between the two men than the playwright has been able to provide.
I'd politely suggest that, if you believe a play needs to be any one of those things, the problem is not with the production.
The plays needs more help than it is getting here.
When a big play needs to come, they go to the pass.
Not that this play needs it to make your head spin.