Hard to deny these facts. Beckett has been grossly inconsistent during his stay here. As you have shown, every other year he is not good at all. This is the even year and if history is to repeat itself as it so often does, he will be above his average ERA with the Sox of about 4.03.
Also, I remember watching him a few years ago in the playoffs against the Rays when his velocity was upper 80s to 90. He also denied being hurt then, as he is denying it now. I am willing to give him another start or two before I say that he is lying for sure about being hurt. Its all very suspicious right now.