This is not speculation, this is fact. If the Lions continue to suck ###, Calvin will leave. He is putting it out there now so that the fans won't be surprised when he decides it is time to advance his career. I know he appreciates his fans, but he only has 2 choices: remain loyal to an organization that has not progressed in decades or make every attempt to do what every other player in the league wants to do: WIN A SUPER BOWL
Look at Raiola. That guy is going to snap one day because he should have left years ago and views himself as a loser because of it. However, he will always be viewed as a loyal Detroit Lion. Then there is Jason Hanson. Something tells me he may be kind of happy to finally have a good reason to retire, yet he will also be viewed as a loyal player. Honestly, I don't think the Lion's woes can be attributed to the players. Think about it, they all come from the same player pool in the beginning and they transform once they reach the organization. Something in the organization is subconsciously teaching them how to execute a false start on the first play of every drive. When this happens, the players don't feel as bad about their stupidity because the guy next to him did the same thing on the previous drive (or play). When they go back to practice, the coach has so many things in his head to spaz out about that it is impossible to focus on one (or a few) mistakes. This creates a lack of focus for the coach and insanity for the players.
Insanity: doing the same thing over and over again and expecting different results
Tip to prevent insanity: If you are a Lions fan, don't watch the 4th quarter of any Lions game. It will add years to your life.