From Zuckerman:
PITCHING LOWLIGHT: There’s plenty of debate right now from those trying to figure out what’s wrong with Strasburg, whether he’s hurt or whether he doesn’t have the mental makeup to pitch through adversity. Truthfully, his struggles probably boil down to this: Poor mechanics and poor command. Strasburg has admitted he’s having trouble with his alignment as he releases the ball, his plant foot veering too far to the right. That leads to command issues, especially with his fastball. And that fastball (which doesn’t move very much) is eminently hittable right now. The end result isn’t pretty: Strasburg now owns a 6.00 ERA, 1.69 WHIP and 50 hits allowed in 36 innings this season. He also has reached the seventh inning only once in seven starts so far. All of that is a real concern.