I guess it's possible that Seattle might draft a run defense only DT, though I hope not. In this mock, Seattle is drafting two of them. I'd be pretty shocked if that happened.
I'm pretty sure that Jesse Williams will be gone by our pick. IMO he the #1 NT/1-tech in the draft.
Cornelius Washington for Flynn sounds about right- in the 5th or 6th round. That said, if Flynn is successfully traded, I'm guessing it would be after or perhaps during the draft.
Offensive Tackle will definitely be drafted early on, corner could very well be first five rounds as well.