I'm thinking that the only way Burt will be help is through Bricks. He the only one that know both Liz and Burt are there. So that how Bricks will turn on to the Mallory. I see this happening, Saul is going to lose focus and go find Liz on his own and find Bricks, since he hold all the keys and probably be on guard duty. The worse situation is that he in the room with Liz and Saul take in the wrong way.