The Nationals said they would shut down right-hander Stephen Strasburg for the season once he reached about 160 innings. They made good on their word Saturday, ending Strasburg's season a day after he allowed five runs in a three-inning start against the Marlins. Washington maintained all along they would protect their 24-year-old in his first season back from Tommy John surgery, even as the first-place Nats closed in on the playoffs. But manager Davey Johnson said the mental side of the impending shutdown was affecting Strasburg the most. Did the Nationals make the right decision?