DT. Iowa. Carl Davis. 23. player. 50. <p>Here’s a riddle and if you can figure it out, you’ll have a better idea of what the Lions are going to do with this pick. As Detroit’s interior defensive line is almost completely filled with free agents—Ndamukong Suh, Nick Fairley and C.J. Mosely chief among them—how much are they willing to spend of their $15 million in cap space (<a href=