Respect and sorry to disagree, but Kyle Arrington had some downright brilliant games this past season. The man was incredible on some of the better slot guys in the league. Did he have an awful SB? Yes, there is no denying that. However, the matchup wasn't exactly fair. He's 5'10" and was up against a guy who is what 6'3"? C'mon. The coaches have to take a ding on that one. It's Hobbs v Burress all over again. Browner should have been on him from the start, but I can see why the coaches would have felt Browner was a favorable matchup elsewhere considering the big receiver had not caught a pass all season.
I must also disagree with your assessment that Ryan has mediocre ball skills. All he did last year was intercept passes and make plays on the ball. He had a really bad sophomore slump. You know, that happens from time-to-time. Let's not write him off. I don't think the coaches will. I see Dennard being cut before Ryan, I'd bet (without factoring in the cap). He definitely didn't flash the same instincts this past season, but I think it's still a bit of a reach to say his ball skills are mediocre, especially when you look back on what he did as a rookie.