kiwanuka, sheard, or morgan?

I am using Kiwanuka as a DL and he has not done much. Should I drop him now for someone like Jabaal Sheard or Derrick Morgan, or should I be a little more patient? Ray Edwards, Will Smith, Greg Hardy, and Cullen Jenkins are FAs too. Thanks.

I have Kiwanuka in a league and have been disappointed so far. but for you to have edwards, hardy, and jenkins available i would drop kiwanuka if this is a sack heavy league. if it's tackle heavy, i gotta think kiwanuka will get more tackles than these guys on your waivers. if sack heavy you should jump on edwards, jenkins and hardy in that order.