Cubs to call up Jeff Samardzija?

According to Bruce Miles of the Daily Herald, there's a "better than even chance" that the Cubs call up AAA pitcher Jeff Samardzija in September. It's not a terrible idea, he has a 4-1 record with a 3.13 ERA since he's been with the Iowa club. He'd probably be in long relief unless two starters went down. Sean Marshall would be the first to move from the bullpen to the rotation. Let's hope it doesn't come down to that.