The more i think about things, I blame the system more than the receivers. Samuel and Moore had some success on other teams, Coleman has shown flashes but is now virtually invisible, even Shakir has dropped a little. Not an elite unit by any means, but on paper, we have had much worse in the past. In contrast, I remember Fitzy get 300+ yards a game with Stevie Johnson and a bunch of UDFA's and practice squad caliber people.
If a career backup can do that with replacement level players, but a HOF caliber QB can't get anyone open all game with WR's who have starting experience, then it must mean that Brady is not calling the right plays or making the appropriate adjustments.