IOWA CITY, Iowa (AP) – A year ago, Iowa tumbled from a preseason top-10 ranking to a .500 finish in the Big Ten.  The Hawkeyes earned a trip to the Insight Bowl, but they went without their top running back and wide receiver after December arrests.  The glow over a comeback win over Missouri was sullied by an offseason workout gone awry. It left 13 players hospitalized, and coach Kirk Ferentz was forced to defend his program.  All that drama, coupled with the departure of a celebrated senior class led by Adrian Clayborn and Ricky Stanzi, has significantly lowered expectations for Iowa in 2011.