How do the Browns upgrade their WR position?

They haven't had a threat at receiver since Braylon Edwards (yes he dropped pes but he commanded double teams and had the greatest statistical season of any Browns receiver in 2007 80 catches 1,289 yards and 16 touchdowns) Maqoui has potential but he has seemed to disappear this season with the exception of his touchdown against the Jets. Robiskie is non existent and Stuckey is nothing more than a slot receiver and Cribbs has made strides but he does way too much already. They need a true # 1 receiver who can they get?