As I see it, I don't think TT will go S in round 1 even if the top two are there due to the confidence the Packers seem to have that Hyde can play both S and slot CB. I think they will take either Amaro or Shazier.
If neither of those two are there I think they will try to trade down-but I think one if not both would be there. Amaro gives us red zone threat we don't have/decent blocker and Shazier is just versatile and fast. Shazier would be real asset when we play scrambling quarterbacks...he can spy-and drop back some to cover middle of the field-or blitz. Can see him playing some 3-4 ILB and 4-3 OLB...possibly occasional 3-4 OLB. He would likely add 5 lbs bulk up a little from 237 to say 242 without losing much if any speed.
The other ILB I like is Barrow out of LSU. He seems to like to attack and reminds me a little bit of Desmond Bishop prior to his injury. If we trade down, then Niklas in early 2, Brooks S in round 2, and Barrow in early 3.