His touchdowns ( 21 ) dipped while he threw the second-most interceptions ( 16 ) of his career .
Matt Ryan had a down year in 2015 by just about every measurable standard .
Matt Ryan 's touchdowns ( 21 ) dipped while he threw the second-most interceptions ( 16 ) of his career .
Matt Ryan had a down year in 2015 by just about every measurable standard .