Harang had already thrown 121 pitches in seven innings
And had just thrown about 25 pitches in the seventh inning, walking two guys. There's no way he would've been able to finish the game anyway, so I don't have a problem with it. Harang seemed OK with it too, as he was laughing and smiling in the dugout after he got pulled. No need to risk another pitching injury this early in the season.