The Bills don't have a clear answer just yet. But Bills head coach Chan Gailey.
"I don’t worry about No. 2," Gailey explained. "We’re so much of a three- and four-wide receiver team that it’s hard to get bent out of shape about who’s No. 2. We need a great group of receivers, and we need our guys to compliment Steve [Johnson].
"That's what we’re hunting for: Who are the best guys for our football team. I’m not worried about No. 2 or No. 3 or No. 4 or No. 5."
Buffalo has a group of mostly unproven receivers behind Johnson, who's had back-to-back 1,000 yard seasons and just signed a contract extension. Receivers such as Donald Jones, Marcus Easley, David Nelson, Derek Hagan and rookie T.J. Graham are all competing this summer to find roles.
The Bills run a spread offense and like to air it out. Buffalo quarterback Ryan Fitzpatrick had a career-high 569 pass attempts last season. But Johnson can't catch all of Fitzpatrick's throws. Other receivers must emerge.
"We know where Stevie is," Gailey said. "Now who are the other guys who are going to be able to step up and make plays? So when they double and triple [Johnson], they can go get open."