The Chiefs lack a consistent pass rush, The Chiefs lack stability at the Nose Tackle, and The Chiefs lack consistent ILB play outside of Derrick Johnson. The one thing the Chiefs do not lack, is secondary. Of course it is not the best in the league, but some player growth and maybe an addition or two could solidify it as such. A man on the market who could do just that, is Eagles cornerback Asante Samuel.
If you can find any consistency of the last 3 Superbowl Champions, its that they were extremely stacked in at least one position. The Steelers are stacked at Linebacker, The Packers are stacked in the Secondary and Receiver, and the Saints are stacked at Running Back and you could argue they are also stacked in the Secondary. Asante Samuel could be the difference between a top 10 pass defense and a top 3. You stick Brandon Flowers on the right side of the field, Asante on the left, Brandon Carr at nickel, and Javier Arenas at dime. You pair that up with the 2nd best strong safety in football in Eric Berry and a young football safety in Kendrick Lewis and you can go out on a limb and call it the best secondary in football. You might be thinking, "well we have a solid secondary as it is, why give up draft picks or young talent for a corner?". And i would ask you, are you 100% comfortable with Brandon Carr covering some of the best #2 WRs in the league every down? Yes he had a very memorable game against Brandon Lloyd and held his own against Derrick Mason in the playoffs, but even in his uprising he still got burnt on his share of plays. And even putting Carr aside, Brandon Flowers has 2 weaknesses that have come to bite us in critical games. Those two things are height and elite speed. No matter how good of a man coverage corner you might see Flowers as, he will get beat on the jump ball from time to time if the man is taller than 6-3 and he will get burnt when facing the likes of Desean Jackson, Mike Wallace, Jacoby Ford, and even a guy like Brandon Lafell could get a deep post route on Flowers simply off of speed every no and then.
With Asante Samuel, I doubt Romeo Crennel or any Chiefs defensive player loses sleep over an opposing offense. Confidence with a young team as shown last year is key and that would in turn help a lot of young players who are on the cusp, meet their potential. With 3 over average corners, you have the freedom to blitz, Romeo Crennel has room to get creative the front 7's schemes, and the safeties will be able to play closer to the ball. This would prohibit average running backs from gashing our defense 3rd down after 3rd down because of how we want to prevent deep passes against good QBs. Some examples of this last year would be Knowshon Moreno (twice) in Josh Mcdaniels offense, Joseph Addai with Peyton at QB, and the Chargers duo of Matthews and Tolbert with Rivers at QB.
Our team needs are at a low, therefore next years' draft picks will be less useful to us than ever before in the last 10 years. Trading a 2nd rounder and 3rd or 4th round pick for Asante would be a great move for the Chiefs franchise and would solidify it as a Superbowl contender for the next 3 to 4 years.