Obo. He just has that burst off the edge, not elite burst or anything but he has it. We honestly need him to show up. And if he doesn't then hopefully the rook shows up (which will be difficult IMO, for him to pick everything up right away in this environment).
If they don't it's unlikely Ebukam will. And I really like Ebukam by the way, he seems to be a great dude and teammate but he simply doesn't have that edge gift. Most guys don't. Ebukam is like a lot of guys on this OLB roster, he's a hard worker who will give you a full whistle to whistle effort but he's not special. Patrick is similar to my eye, really liked his preseason edge snaps last year and he's flexible but can he provide heat off the edge snap to snap? Unlikely.
Polite I suppose is a longshot. He does have some really good edge instincts and natural ability but he's not someone we can count on either.
IMO it's basically Obo or bust for us on the blindside. And if not we can still end up with a good overall sack/pressure total thanks to Donald. So I'm not worried about the group overall even though I don't have high expectations for them.