My post got nuked in the outage, so I will put it here again, since it seems there are people who are ignoring his play on the field.
First major knock on him is missing tackles at a 21% clip. That is a lot of missed tackles and with only eight tackles for loss, it's not like he was missing tackles behind the line of scrimmage and not giving up a lot of yards behind him with guys being right there to get the ball carrier down.
Second knock on him is the poor pass defense. An 85.7% completion rate is unacceptable. A 104.4 passer rating allowed is unacceptable. Giving up 236 yards after catch is unacceptable.
Third knock on him is all but one of his splash plays (tackles for loss, sacks, forced fumbles, fumble recoveries and interceptions) came against opponents with losing records. Against superior competition he was pretty much just a body on the field.
Fourth is for a guy who is just a body on the field, he will have a higher than $3M cap hit, since he will probably want a bit of a bump in pay from last season. You can easily use that cap for improving other parts of the defense and using one of the younger LB's on the roster that has upside to play and hopefully flourish into the next great LB.