The Baltimore Ravens could definitely use another wide receiver. As Garrett Downing pointed out, Mike Wallace and Breshad Perriman may be the fastest wideout pairing in the NFL. However, the backups currently under contract have relatively little experience.
Whether the front office reaches an agreement with an aging veteran such as Anquan Boldin or Victor Cruz, or acquires a younger pass catcher through a trade, further depth is necessary at the receiver position. Perriman missed his entire rookie season with a knee injury and had issues with knee inflammation as an adolescent.