Holy hell is Shane dumb or what? Frank was down to work with him to the end, could have been a powerhouse team, but I guess Shane would rather just have a showmance than actually win the game. Whether Frank stays or goes, Shane is screwed either way. If he goes, he's the biggest target left and if he stays, Frank is going to be gunning for him.
Frank isn't staying, and Shane's alliance has the votes right now. He's good.
Putting Frank up wasn't dumb. The coaches are coming into the game, getting rid of his biggest physical threat helps him immensely.