Seattle Seahawks blogger Clinton Bell weighs in with the five players who he thinks need to improve the most in 2013 if the Seahawks are going to make a serious push for the Super Bowl. The biggest name that comes to mind for Clinton is Seahawks rookie DT Bruce Irvin. He showed signs of both brilliance, and need of improvement in his rookie season. He ended up with 8 sacks on the year, but his play on first and second down, when called upon, is where the most work is needed. The WR corps of Sidney Rice and Golden Tate needs to improve too, with one of them finally coming out as the top WR threat for Russell Wilson.