Its all well and good saying that the serum that resurrected Coulson supposedly didn't resurrect him and that he's dead.... But they used the same serum to help save Skye... So does that mean that could on was too far gone to be saved, and that it worked with Skye because she wasn't dead already... Or does it mean that the serum didn't work at all and lead to Skye dying too.... Also, after coulsons resurrection, he started showing the side effects, eg drawing the Kree civilisation map puzzle piece... Which Garret also showed... And others too... So did they all die and have this "subconscious connection" between limbo and the living world? And what about the physical connections between Phil and his team?? Ghost Phil lending a ghost hand?