Marvin Lewis continues to be the right man for the Bengals

After the 2010 season, Bengals coach Marvin Lewis became a free agent.  He decided to stay, and the Bengals decided they wanted to keep him.  A 2012 extension pushed the deal through 2014, and a 2014 extension nudged the contract through 2015. So Lewis is now under contract for one more year, after four straight…