The Nationals are in a position where, even without Straasburg, they still have a great rotation with Gonzalez, Zimmermann, and Jackson. They can shut him down and still be capable of making the playoffs and doing well. If they got a wild hair up their ass, they could conceivably bring him out for the playoffs after a full month's worth of rest, but who knows what affect that will have on his arm and long term future. I think they play it safe. They got enough bullets in the chamber to succeed without him. With Zimmerman playing like an MVP over the last month and a half, Michael Morse starting to comeback around with his power, Adam Laroche having an improbable comeback year, Werth back in the lineup and performing well, the aforementioned rotation, and one of the best bullpens in baseball that just got Drew Storen back late last month... they're in a good position to succeed without Stephen Strasburg.