Speaking solely for myself, that's not really the disconnect I'm having. I just don't believe that they're as rigid on roles as some here think.
Cook can be on the field at the same time as another slot WR. Austin isn't a guy who is limited to the slot. Amendola played Flanker and Slot for us in 2012.(Flanker in 2 WR sets and Slot in 3+ WR sets) Austin is less limited than Amendola because he has the speed to challenge teams deep.
So for me, saying Cook will be used as a slot WR doesn't preclude them from taking a guy like Austin in my mind. As I said before, the Patriots managed to use both Hernandez and Welker in the slot quite effectively.
Here you see that Cook is in the slot with another WR:
<a class="postlink" href="https://www.youtube.com/watch?v=sDb79EAePss" onclick="window.open(this.href);return false;">https://www.youtube.com/watch?v=sDb79EAePss</a>
For me, the question isn't Cook...it's Kendricks. He'd be the one leaving the field for the slot WR likely.
I think it's give us a lot more flexibility and makes our passing game tough to match-up to. You put Cook, Austin, Givens and Quick(or another WR) out on the field at the same time...how many teams have the athletes to match-up with all those bodies in man coverage?