A key return and a big departure spiced the opening weekend of NFL free agency for the Packers.  On Friday, Chad Clifton flirted with the Washington Redskins but shortly after his visit out east, the Packers put up a three year offer for 20 million dollars.  Clifton quickly signed it saying he always wanted to finish his career in Green Bay.  The Packers needed Clifton back because there is no clear cut alternative at left tackle on the roster.  On Sunday, Aaron Kampman bid the Packers farewell by signing a four year, 26 million dollar contract with the Jacksonville Jaguars.  Kampman will get 11 million guaranteed.  Aaron had a solid 8 year run in Green Bay, making the pro bowl twice and racking up 54 career sacks.  While he never publicly expressed his dislike with the team's switch to the 3-4 defense last year, it was clear he was uncomfortable playing outside linebacker.  Kampman often struggled in space and longed to get his hand back on the ground and play defensive end.   He'll get that opportunity in Jacksonville, a team desperate for pass rushing help.  They only sacked opposing quarterbacks 14 times last season, the third lowest total in league history.  Kampman had an unquestioned work ethic and his presence in the locker room will be missed.   Rookie Brad Jones filled in for Kampman after he went down with a knee injury against San Francisco, and while Jones did record 4 sacks, he'll need to add bulk and strength this off-season.