If an elite LT falls to us it would not be a horrible idea to take him. Let him start at RT and move Howard to OG. This solves a FA problem, upgrades the OL, and gives us rock solid OT's going forward. A stud LT at 9 is a cap friendly move, much more so than re-sign Moore for example.
This would be better for us than taking Warmack who I really like. An OG at 9 is cap neutral at best.
I don't think any pass rusher that falls to us would be a sure thing. This draft is deep on defense and we can find adequate LB's later in the draft.