NASHVILLE, Tenn. -- Marcus Mariota has a major sweet spot on the football field.
Between 10 and 20 yards down the field, in the middle third, the Tennessee Titans rookie quarterback’s numbers are off the charts.
His “success rate” -- the percentage of plays that increase his team’s chance to score -- is 76.9 percent in the area, where the league average is 60.7. His QBR in that area is one-tenth of a point from a perfect 100, with 21 completions in 26 attempts good for more than 19 yards per completion, three touchdowns and no interceptions.