I keep going back to the fact we just lost a HoF DT who enabled us to approach things up front in a manner where we got away without strong edge rush. So if I am in Les' shoes right now I am thinking edge is the ideal option at 19. Because that is the easiest way to add the pressures they need.
On top of that we need a DT. There is flexibility in that too, they could take a 3T or one of the other roles. Could be a nose space eater or a guy with length to play over the tackle. Might even need a couple additions (maybe both) to replace AD.
So I see this move as ensuring there is enough competition at corner to allow for an early draft defensive front rebuild. It speaks to the obvious need up front. Les talked about all this in his recent interview. Feels unavoidable to me given current roster makeup.
So barring another addition my guess is their draft plan looks like this:
Get your Edge at 19.
If not there look for trade down.
Load this defensive front.
Try to find a wideout and take advantage of this class.
Late rounds load up RB, the ST roles and space tacklers.