Football remains a team sport. It is probably better to have average talent across the board than have exceptional talent in one area combined with poor talent in another area.
Say we have great players on the d-line but poor coverage players. That pressure is little help with wr screens or quick slants. Some of those 300 long pass plays last year started out on 5yd slants. What if our cbs break off of coverage because they thought the qb winked at them the d-line pressure wont help if the qb just has to lob the ball in the wr general area.
And no matter how great the shut-down corners are after 10 seconds someone is going to get open. In this team sport the players have to work together and help each other out.
Everyone has an opinion on what is the biggest need for this team. As that old saying goes 'Opinions are like...' well I forgot how that saying goes I only scored a 4 on my Wonderlick.
Opposing teams will discover the weakness in a defense and try to take advantage of it. Last year it was clearly JD and hopefully all the on-the-job-training will improve his play. With a little better safety help teams should have a harder time completing 80yd pass plays against us next year.
Faine is now the highest paid center and there is no way you can take that away from him.