The NFL's rookie wage scale has diminished the negotiating part of contract negotiations.As a result, the Seattle Seahawks announced Friday they had signed seven draft choices. The San Francisco 49ers announced they had signed five of theirs. The Arizona Cardinals announced they had signed four of theirs.Players can participate in rookie minicamps with or without signed contracts. The process is largely a formality at this point. There's less tension between players, agents and teams as training camps approach.