For what it's worth, a glaring shortcoming of this team is and has been at TE and I think the Packers know it. The draft this year was weak in TE talent. I heard rumors of TT looking at the FA market (Gonzalez? Graham?) but, of course, nothing happened.
Patler, do you remember earlier this year when the Packers tried out several basketball players who seemed in the Gronk mold (at least physically) but none of the tryouts panned out? That right there was a signal to me that the Packers knew a significant weakness existed at TE. I can't remember if Nelson was healthy at the time of the tryouts.