Trevor Cahill has become the ace of the Oakland A's staff. Brett Anderson had the role at the beginning of the year, but because of injuries, Anderson has conceded the role. 

Today, Cahill improved his record to 12-4 today, his ERA is now at 2.56, WHIP .98, and has struck out 76 while walking 41. At 22 years of age, Cahill has blossomed. 

When the season started, it didn't look like Cahill was going to h...

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