Defensive End at 11?

Are you starting to notice some chatter/mock draft predictions about the Bills taking a defensive end with the 11th pick? Derrrick Harvey of Florida is the most common name you see. There are valid reasons for and against adding another defensive end. With Chris Kelsay and Aaron Schobel already starting, there is no clear need for a starter. Plus, there's a lot of money tied up in those two veterans.
But here's some reasons why it makes sense. As the Giants showed, you can never have enough pass rushers. Plus, a better pass rush can overcome weaknesses in the secondary. You can get better cornerbacks, or an improved rush will make your current cornerbacks look better.
With Anthony Hargrove suspended, there is a need for a 4th DE. With Ryan Denney coming off two surgeries last season, maybe there's a need for a 3rd DE. With the trade for Marcus Stroud, and the expected emergance of John McCargo, another DE would give the Bills a potentially dominant defensive line.
If they're not going to take a receiver in the first round, I'd like to see them grab a potential #1, lockdown cornerback. But if the top two (Leodis McKelvin, Dominique Rodgers-Cromartie) are gone, then defensive end may be the way to go.
(Remember, our Channel 4 Sports Special "Sports Blitz-Draft Preview" airs Friday 4/25 at 7:30 on Channel 4 and here on wivb.com.