Myles Jack?

I was big on him this year as well, but whats going on here?  One game he was suspended and another he got concussed, but he didn't look good in either up until that point.  He's missing arm tackles and doesn't look aggressive as I though he would be.  Time to worry?

He's just not playing well. I think we have to change our expectations for him now. He's more of a LB3+ in my eyes.