If you are Dani, it would not be a bad idea to put up shelly and Adom. To her, they are not pawns. she knows, both of them, would be coming after her, based on how they ve been voting. So if at the same time, she can split up JJ and Brenchel, she has done a great job. Right now, she will be the number one target of 6 people in the house. she barely has a chance to survive.
OF course, it can backfire, and they put her up anyways. But if it works, an lets say Rachel, put up JJ, it would be a huge move.