The Browns' defensive scheme

After the Cleveland Browns made the decision to hire Rob Chudzinski as their new HC, there was buzz that they'd be changing their defense to a 3-4 alignment. This idea was buttressed by the hire of Ray Horton as the new DC, as Horton has worked within a 3-4 framework in his recent jobs in Arizona and Pittsburgh. So will they switch, or stick with the 4-3?