In order for Sanchez to not sink a team, he needs to be in a situation similar to the two years in a row in which the Jests made it to the AFC title game. He needs to be on a team with a stacked defense (check) and a commitment to running the football (supposedly that's the plan).
If you can stay in every game with your defense and running game, a guy like Sanchez can serve as an effective manager. Let him hide behind the run and short pass game in close contests, drawing the defense in tight, then have him throw the occasional, well-timed, deep ball against man coverage, which we know our receivers are fully capable of beating.
The Eagles are an uptempo offense that likes to put the game in the hands of the QB, and after a full season of Chip Kelly film, teams knew how to defend it.
And again, it pains me to have to take this side in a discussion.
Do I think Sanchez is a very good qb? Absolutely not. However, do I think there is a better *realistic* option out there? Absolutely not.
With the options out there right now, we just need to find the guy who will screw it up the least.