Stretch run backup?

With the playoffs starting next week or the week after (depending on you league, I'm not just unsure), I was thinking about who the best Quarterback to have as a backup for the stretch run of the playoffs.

Cuz I tell ya, them Patriots keep dropping like flies and it's got me worried for 'Ol Tom.

Looking at schedules, who would you say is the best candidate for a bench insurance should you need them in case of injury?