The Cleveland Browns were able to bolster their pass rush by trading for defensive end Olivier Vernon in March. But Vernon might still might be a member of the New York Giants if the Minnesota Vikings had gotten their way.
According to Andrew Krammer of The Star-Tribune, the Browns were in discussion with the Vikings about trading guard Kevin Zeitler to Minnesota in exchange for defensive end Everson Griffen:
This offseason, Griffen for Zeitler was the hope before Giants finalized Vernon deal. Not sure how far along it got, but there was hope in the building up until Giants-Browns trade.