The secondary is one of the biggest positions of concern for the Huskies, but they'll be able to rely on Sean Parker's leadership and experience to steady them throughout the year.
Parker's 2012 season hinged upon the Arizona game. During that game, he suffered an embarrassing moment when he got stiffarmed onto his back as the Arizona player made his way into the end zone. His attitude changed after that, and the following week he came out and laid the hurt on Oregon State, knocking Markus Wheaton out of the game at 1:41 here (which would probably get him ejected in 2013):
He also picked off a pass and broke up three others. He ended up leading the team in solo tackles with 54, and finishing second on the team in total tackles to John Timu.
For Parker to make the next step to become an All Conference level, he needs to do a better job of ball hawking. Over his career he's picked off seven passes, but just two last season. He did force three fumbles though, and if he can bring those two numbers combined into the 7-10 range, it will bode well for not only him and his individual accolades, but will for the team as a whole.
There's an easy argument to be made that Parker could be the most important individual on the defense this year. He could be the lone senior starter depending on how the position battles in the secondary shake out, and his play could be the determining factor in how the secondary goes. He's now a good enough player (or should be, anyway) that he can cover up some deficiencies on his own, and Justin Wilcox will likely be developing some gameplan aspects around his talents.