I too like the defensive players that return kicks, but you could probably do just fine picking up S. Jones or McKelvin. I'm not sure how long McGee is out, but McKelvin is starting at CB now and he is returning all the kickoffs. S. Jones recorded 10 solos 1 assist and a forced fumble last week. Does Blackmon play on D as well? If not, I would drop him and pick up one of those 2 DB's. Also, see if Josh Wilson is available. He starts at CB for SEA and returns kickoffs as well.