Adam Caplan reported via Twitter that KC worked out DBs: Darius Butler, Frank Walker and Derrick Martin last week.. I found this old scouting report on Butler coming out of college... "Strengths: Good height and athletic build with room to bulk a little in the weight room ... Very instinctive; reads and reacts without hesitation ... Very fluid hips; nice body control ... Has the recovery speed and initial acceleration you look for; no questions athletically ... Competitive and plays with a swagger ... Anticipates routes in press man coverage ... Physical and can play bump-and-run ... Smart ... Three-year starter and has experience ... Solid work ethic ... Will be a better pro than college player ... Outstanding Senior Bowl week in Mobile ... Lots of undiscovered potential. " "Player Comparison: Asante Samuel. Same build. Similar skill set, but Samuel has better ball skills, which Butler can improve."