It's almost the opposite of bait and switch. In the motte and bailey, the "bailey" is put front and center and only abandoned when a more defensible position w

It's almost the opposite of bait and switch. In the motte and bailey, the "bailey" is put front and center and only abandoned when a more defensible position when under attack ("everything is subjective"). In "bait and switch" the bait is put front and center, but it isn't the position that you want to take, it's one that's used to lure in new recruits ("learn how to learn!"). In some cases, the "motte" and the "bait" might be the same thing - a good bait can also be easy to defend, but not all philosophically defensible positions are particularly attractive.