I'd honestly stick with Brown and Evans. Reason being is the difference in peoples mentality pre draft vs end of the season.
Right now everyone is down on Mike Evans. He has name recognition and if he has one decent preseason game, he'll be touted as the biggest bounce back candidate ever.
Still leery of him? trade him then when he has at least the optimism of the season ahead.
Drake is still an unknown commodity.
Just my opinion.