Detroit's D Line Looks Strong After Losing the Great George Johnson

I may be overstating it, because I have only been watching the Monday Night Game intermittently, but Detroit's D line seems to be playing pretty well.  if they are  infact playing as well as it seems at first glance that is pretty impressive- considering they have moved on from Suh, Fairley and the great George Johnson all in one off season.  Maybe we should be asking for some pinters.