Sorry Quin, I don't see the sell in this idea. Reagan and Ford toyed with the idea of dividing up the normal role of the presidency along these lines and it struck everyone as inappropriate. More germane to the fun question posed (and this stuff is fun) is why in the world Thompson would want to bring on Romney if he lost three major primaries in a row, has gained a reputation of a poser and is doing so poorly with key GOP groups (e.g. every income group except $150-200K earners, evangelicals) while sporting the only negative favorable/unfavorable rating among the name GOP contenders. After basing his campaign on an explicitly anti-Romney theme ( the "consistent conservative") , Thompson, I think, would not turn around and cozy up to him.