I wouldn't mind Tebow, purely from a potential standpoint, if he could be had cheap enough. And the Packers are likely strong enough to handle the media frenzy. And no sane person would call for him to be starting over Rodgers.
Green Bay would be a good fit because of Tebow's number 2 status and McCarthy's quarterback school. With actual throwing mechanics, or at least something that resembles throwing mechanics instead of something that looks like a pig throwing up a cat it just ate, Tebow would be at least serviceable. Might even be good.
If McCarthy can't turn Tebow into a pocket (or near-pocket) passer, no one can, and he should give up convert to TE/H-Back.