Erik Cole played with the Oilers?
July 1, 2008: Carolina traded Cole to Edmonton for Joni Pitkanen
March 4, 2009: Carolina reacquired Cole at the deadline. Ended up being a three way deal which ended up being a headache to complete. Edmonton was set to receive forward Patrick O'Sullivan via Carolina from the LA. Edmonton then asked who LA was receiving and were told Justin Williams and if I recall correctly they preferred Williams over O'Sullivan and tried to cut LA out of the deal. Eventually they placated Edmonton by sending a 2nd round pick.
Los Angeles: RW Justin Williams
Carolina: LW Patrick O'Sullivan, Calgary's 2009 2nd (51st overall)
Carolina: RW Erik Cole, Edmonton's 2009 5th rounder (130th overall)
Edmonton: LW Patrick O'Sullivan, Carolina'2 2009 2nd (ended up being 58th overall, Carolina almost had an identical record to Calgary but they made the ECF so the pick got bumped down)