The Lions will be looking to upgrade at running back this offseason and there should be plenty of options. "This offseason we have to look at every position and evaluate what kind of players we're going to bring in and at what level," Lions general manager Martin Mayhew said last month. "The question will be what their role is going to be. Is it going to be a guy you bring in and say this guy is going to be our starter? Or is it going to be a guy you bring in to supplement what you already have." Detroit signed free-agent DeDe Dorsey to bolster their roster. "We're going through the process," Mayhew said. "You look at free agency, you look at guys who are available. It's going to also depend on what group we're dealing with. Are we dealing with the four-year-and-above guys or the six-year-and-above guys? "I wouldn't say we've made a determination either way on that. I wouldn't say that there's something missing, but I would say we're looking closely at every avenue to get better." If there isn't a new collective agreement, running backs like Ronnie Brown (Dolphins), Mike Bell (Saints), Jerome Harrison (Browns), Darren Sproles (Chargers), LenDale White (Titans) and Jerious Norwood (Falcons) could hit the market.