(Renton, WA)  --  The Seattle Seahawks are looking to shore up their secondary after losing several players to free agency.  The team has signed cornerback Phillip Adams, who played the past two seasons for Oakland, mainly in a reserve role.  Adams, who was drafted in the seventh round by the 49ers in 2010, has signed a one-year deal with the Seahawks.  He played for Seattle at the end of the 2011 season and during the 2012 pre-season before beginning his stint with the Raiders.