Sorry Nicki, but no one is talking about ONLY replacing Trevor with Oz.  It's obvious other improvements have to made on O too, particularly on the OL.  That's a given.  But it's also not likely there's gonna be dramatic improvement in OL play this year, meaning whoever we have at QB is going to have to handle the pressure way better than Trevor has the last 4 games.  And frankly, he's just not very well-equipped to do it.  He doesn't even dive to the ground well without the ball coming free.  Put 2 hands on it, for God's sake.  But then you're falling on the shoulder, which he seems to avoid, making me question whether the shoulder is even healed enough yet.  

Trevor is a decent QB when the rest of the O is going well. But he's woefully bad when things aren't going well for the rest of the O.