Why would say this? What has he accomplished exactly? He's got good legs and has that added dimension of being able to take off with the ball. And you'd hope he's learned something playing behind AC the last 5 years. But lets face it, he hasn't played much and his passing stats aren't spectacular in the limited action he has seen. His last start, vs Wpg at the end of the season, he didn't win. He's a guy with good tools and potential, but that doesn't guarantee wins right now.
BTW, as a bomber fan I'm not really into promoting anything rider, but if you're going to discuss some of the younger QBs around the league, Drew Willy accounted well for himself in the time he had on the field this year. If you're predicting QBs to Ottawa, he might be a guy to keep an eye on. Whether Mitchell is left exposed to Ottawa IMO depends on whether tate can stay upright in 2013. If he has another injury plagued year, it would be quite the risk to protect him over Mitchell IMO.