Swearinger impressing Washington with his performance so far

According to John Keim of ESPN, Washington Redskins head coach Jay Gruden has been impressed by free agent signing J. Swearinger. Gruden said of Swearinger, “He has a great understanding of defense. He's been fun to watch.” It’s only day three of Washington training camp, but Swearinger seems to be drawing universal praise from Washington’s beat writers.
Swearinger is coming off a breakout year in Arizona, in which he played 839 snaps, and was the ninth-highest-graded safety in the league, with a PFF overall grade of 87.0.
Swearinger showed huge improvement while in coverage last year. In 2015 with Tampa Bay and Arizona, he received a coverage grade of 70.9 and allowed 1.06 yards per coverage snap. In 2016, he improved his coverage grade to 87.1 and allowed just 0.41 yards per coverage snap.
Swearinger performed very well while in the box last season, and posted a run-stop percentage of 8.0 percent when lined up within 8 yards of the line of scrimmage, the league’s fourth-best mark. If Swearinger can improve upon his tackling from last year (he registered a tackle efficiency of 6.9, ranking 52nd of 74 safeties), the Redskins will almost certainly have found a steal in free agency.