Should the Tennessee Titans trade Zach Mettenberger?

The Tennessee Titans are in an odd, but good position in terms of quarterback depth right now. Currently, they have Marcus Mariota (the obvious starter), Charlie Whitehurst (Ken Whisenhunt's guy) and Zach Mettenberger. While he seems to have backed off of his initial "trade me" reaction, how much sense does Zach Mettenberger make for the Tennessee Titans offense?

I am going to take a look a the pros and cons of Zach Mettenberger as a Tennessee Titan.

Pros

Zach Mettenberger is a perfect fit for what Ken Whisenhunt wants in a quarterback. Mettenberger is tall, has a strong arm, takes command of a huddle, and has shown that he can put his team in a position to win games.

Even if he isn't the starter on the Titans, he has all the physical tools to be a great locker room guy who can come in on spot duty and win you a game if the right pieces are there. I believe this not because of what his win/loss record was in his rookie year, but what he did with such a terrible roster of disinterested players.

If Marcus Mariota doesn't work out, it would be foolish to trade someone who is such a good fit for what you are historically known for, right?

Cons

Here is the big one, how does he fit into the new Titans "hybrid" offense. If you can believe what Ken Whisenhunt is saying then you have to think that Mariota's athletic ability will be highlighted in the new offense. Whisenhunt knows his job is on the line this year and if he can't figure out how to make Marcus Mariota look somewhat like what fans saw in Oregon last year, then he will be looking for a new job in January. With that in mind, how does Mettenberger fit in this offense? He isn't a dynamic runner and does his best work from a stationary pocket. That is not what the Titans are going to do in 2015.

The other big con with keeping him on the roster is that he has value right now. Teams with great defensive talent but no quarterback (like Buffalo and the New York Jets) need a player that they can trust more than a rookie and who hasn't reached his potential (because they can't afford it). Mettenberger may be the only quarterback in the NFL that fits that mold. Could the Tennessee Titans squeeze a second or third round pick out of a team that desperately needs help at the biggest position on the field? If so they would be foolish not to trade him, right?