Taking advantage of the price of an asset within one market and then in turn selling that same asset for a profit is the underlying concept behind arbitrage. Certain NFL teams have mastered the concept of arbitrage with the help of their coaching staff and front office management. The Seahawks have become one of the best teams within the NFC and this success did not occur overnight. Instead, it took years of planning and successful offseason acquisitions for the Seahawks to become a competitive team within the conference.
Imagine the Seahawks decided to pick up a veteran wide receiver prior to the beginning of preseason football. The Seahawks understand that this incredibly successful player who has participated within countless Pro Bowls is on the tail end of his career, but the team believes he can be a valuable asset to their offense. The wide receiver is willing to sign with the team for less in comparison to what he was earning during the height of his career. As the season progressed, this player broke numerous records and had a breakout season for the Seahawks.
Now that the trade deadline is approaching, the Seahawks realized that they could trade this receiver to the Cardinals to in turn sign a stud defensive end that they have been dying to acquire. The Cardinals need another solid receiver so this is a no brainer for them. What the Seahawks did was turn an under priced asset in the free agency market into a valuable commodity that various franchises would love to add to their teams. The profits that the Seahawks earned in this case were wins and they successfully used arbitrage to their advantage.