In 2009 our 3 top wrs had over 700 receiving yards but I get what you are saying. We lost Ginn and Kirkwood and outside of our top two guys the position is still pretty shaky.
They did target a LB (Jamie Collins) but missed out so an inside lb definitely might still be in play.
I just worry that Queen and Murray
1) aren't as talented
2)arent as big as a drop off from Logan Wilson in rd 3 as it is from top rd 1 wrs to rd 3 wrs.