Jesus Christ no he's not. Joe Flacco is the ultimate embodiment of the Franchise QB myth (yes, more so than Sanchize.) He's below "game manager" in the quality scale. He brings nothing to the table. If he took a Joe Theisman tomorrow in practice, it wouldn't even move the line for this weekend. It's not like the Ravens don't have a top 5 defense, top 5 offensive line, and a mauling rushing attack (not to mention legitimate receiving threats.)