Can the Bears defense outscore the Bears offense?

[TB_11]

Here's the situation:

 

You give the Bears offense 10 offensive drives starting at their own 40 yard line against the Bears defense. The offense can only end drives in the following ways: touchdown, field goal attempt/make, turnover on downs, turnover through fumble/interception. If the Bears defense gets the ball, they can't lineup as an offense, meaning the only way they can score is to return a fumble/interception or field goal block/miss into the end zone.

 

Who wins?

 

P.S. How cool is it that for this question you have to include the possibility that a field goal miss can still result in a touchdown for the Bears defense? Vasher rules.