but then what good would that do them?? Kenny and Laurel throw in Luke and Ev, every time. None of the other teams are close to being a threat to them. Then Kenny and Laurel and Luke and Ev leave the room, and Theresa/Ryan, Jenn/Noor and Carly/Landon have to throw one of themselves in. Unless one of those three wins every single challenge from here out, them teaming up would end up helping Kenny - they'd be forced to pick each other off, and Kenny and Laurel wouldn't have to be involved.
They're past the point now where an alliance can really help you. This is why it would have been so much smarter of Wes to keep Danny around until now.