Not because they can't work together or anything like that, but because of pure economics. According to ESPN Analyst Andrew Brandt it would cost the franchise approx 50,5 million to keep them both. Downright impossible.
So for the last few of you who still believe we'll get both, this might be able to convince you that it just isn't possible. This means that if Peyton is healthy, and the Colts choose to pick up the option, we could be in for a very interesting day come April.