I think its the Jacks time. Sam has proven they can score a lot and quickly, but I believe Gronowski will be the difference and they will get up on Sam and not let them back in it like James did.
I'll repeat what others have said. The Jacks being there and rightfully there gives me hope that with a couple more kids on the line and a guy or two that can stretch a defense a bit at WR we are building towards a championship caliber team.