The size of your db's will probably help you greatly against WR bubble screens. They have gone one of two ways this year- a bust for no gain or a pretty big play. It came down to execution with blocking. I honestly don't expect to see as many screens in the flats to receivers.
The screen game is used frequently to compensate for their underwhelming rushing attack, but there is more to it than that. When Koetter (OC) was hired, Mike Smith told him to develop the screen game. Their last OC had said that they didn't have the personnel to run screens. Before this year, if a team could get pressure with 4 down lineman (think Giants playoff game), they would shut the offense down because Ryan wasn't able to run screens to mitigate the pressure he was facing. Hell, he couldn't even check down to Turner (stone hands). Now he can call screens and it has made a world of difference. Reason #98729837423 why Atlanta fans hated Mike Mularkey.