Arroyo's problem is that if hes having a bad day with location, he cant rely on a fastball to get someone out. He just throws more soft stuff up there and the hitters mash it. But most of the time this season he has been pitching great and locating his pitches very well. Very feast or famine with him. Plus if the Reds in the playoffs get some NL west team other than the Rockies (which wont happen) Arroyo will dominate. Just like last year in San Fran.
Reds just need to get to the playoffs first