http://www.boston.com/sports/football/patriots/articles/2006/03/24/belichick_knows_this_routine/ Patriots coach Bill Belichick does not share in the widespread panic that seems to have engulfed Patriot fandom over the losses of free agents Willie McGinest (Cleveland), Adam Vinatieri (Indianapolis), and David Givens (Tennessee), key starters on the team's recent Super Bowl championship squads. Meanwhile, in the two weeks teams have been able to sign free agents, New England has added only Reche Caldwell, a receiver considered a disappointment with the Chargers, who selected him in the second round in 2002. ''This is all part of the process," Belichick said yesterday. ''You do everything you can to improve the team when you can do it. That's the process. And it doesn't stop, really, until you get to the regular season. We have a long way to go." As far as losing players to other teams, Belichick points to the long list of players who have departed in recent years, rattling off the names of Ty Law, Joe Andruzzi, and Ted Washington to illustrate there are changes each offseason. ''Every team has to go through it," Belichick said.