'There are two types of tags – exclusive and non-exclusive. An exclusive tag means a team holds all negotiating rights with a player. A non-exclusive tag means agents for players can negotiate a contract with another team, but the original team has the right to match any offer, and if it chooses not to, receives two first-round draft picks as compensation. There is also a transition tag, which is based on the average of the top 10 salaries at a player's position and is similar to the non-exclusive tag, but does not have draft-pick compensation for the original team if it chooses not to match a contract offer. The Buffalo Bills signed tight end Charles Clay away from the Miami Dolphins last year after he was given the transition tag.'