Do the Lions even have a chance against the Bears?

The last time the Bears defense played against a third stringer, they earned a 16-0 shut out. I think the Lions have a really good offense that's much better than the Dolphins, but I don't see how a third stringer could possibly even score against a Bears defense that has stopped much better quarterbacks like Michael Vick and Aaron Rodgers. Honestly, I don't see how on Earth the Lions could possibly win this game unless Bears offense makes too many mistakes and allows them to score enough defensive touchdowns, but they don't have a good defense either. What do you think, will this game even be close? And explain why.