I am not putting it on Collins but I do think that Spikes not even registering an assist is unacceptable. He is a 4th year player and he is going the other way as a player. Last season he forced 5 fumbles and was one of the most feared run stoppers in the NFL, this season he hasn’t forced a fumble and is inconsistent on a week over week basis.
Collins played ok in coverage made 1 really good play but other than that the LBs were unimpressive outside of Hightower who had a solid overall game.
Not to make excuses for Spikes, but you do realize he has been playing hurt for most of the season, right? He's been noticeably limping for weeks. I wouldn't call that a regression of skills. However, you can make a pretty good case about whether he should even be out there if the injury is limiting his play that much.