Manning is 30, right? So he's a QB, which means he could still have as many as eight more productive years... but his trade value will decline exponentially by age 33, and possibly as soon as next year. I think all Manning owners shoul consider trading him this offseason, b/c if the Colts do poorly after losing Ege, Manning will decline in value a great deal. This year though, someboy might blow you away with an offer, if they think no inside running game will mean a huge season out of Manning.