Speed at wide receiver is something the Bengals wanted to get more of this offseason, and for good reason.
For one, it's what offensive coordinator Hue Jackson likes to have. Having someone who can get deep and stretch the field is critical to a successful offense. It gives receivers and running backs more room to operate when defensive backs need to run 20+ yards down the field to make sure they're not getting beat deep.
Cincinnati didn't have much of that last year outside of A.J. Green. Bengals receivers had just 14 catches for 20+ yards in 2014, and eight of them came from Green.