and none of these arguments are limited to JJ Watt. It is more about acquiring a player on the defense line who can win one-on-one matchups.
I'm not sure we want to resign Reddick then, or at least you would be gambling on him improving. I don't want to do the guy down because I'm pleased for him but unless we are going to play rookie or backup tackles every week I don't think you can bank on consistent performance from him (yet).