Seymour is a cornerstone of our defense.
I agree he hasn't played like the All-World guy he is, but he came back in week 10, without a training camp, after being injured so severely he had to go on pup. I would read NOTHING into how he has played in his first few games back, but how he has played has been solid, if unspectacular.
I like Jarvis Green, but if you watch him play, he is NOT a strong 2gap run defender. He has a good role here, but replacing Seymour with Green would be a big dropoff in an area that is vital to our defense.
I expect that we will see steady improvement in Seymours play through the end of the seaosn and in the playoffs.
Seymour is recovering from an injury, and has always been a DOMINANT 2 gap DL. I have no worries that he has lost his ability.
Trading him is not even a consideration.