Payton was an option to cut, but honestly I think it's harder to find a good man CB than it is to find a tall WR. Colleges churn out big and tall WRs every year now and guys that are tall and run good deep routes are pretty common these days. It's why a guy like Perry falls to the 6th round. And many of those guys are ready to go day one in limited roles if nothing else. IMO, it's much harder to find a good cover CB and I think Payton is already good and could become a very good player but got passed over because of where he played. I would have been much more unhappy about losing Payton than Perry. But, I could be wrong.
As you know, I'm not a fan of trading for a WR right now, but I don't think that Perry really does the things that Adams does.