DL help big play system

Looking for the best DL for the rest of the season.  I have Ware, Hardy and Wake.  I start 2.  Should I drop any for Campbell, Wilkerson, Selvie, Poe, Mercilus, or Mingo?  What's going on with Wake?  Is he worth stashing?  Thanks

I'd stay pat. Wake has been bothered by injury both hopefully the bye week will give him the needed rest to get back on track in Week 7.