Depth of Titans WR corps

The Tennessee Titans have a good amount of talent in their WR corps with the likes of Kenny Britt, Nate Washington, Kendall Wright, Damian Williams and Justin Hunter. However, you can't spell "brittle" without Britt, Wright's battling a sprained knee, and though Washington is an iron man (seven seasons without an absence), he turns 30 next week. So, it would behoove the Titans to maintain plenty of depth at wide receiver to cover that backs.