SP Brett Anderson has made a huge leap forward starting at the end of May when his velocity increased. It's been speculated that perhaps he wasn't in the best shape coming into ST or perhaps he just needed some more time to get geared up. He only made 6 starts in AA last year! He's never been in AAA.

Anderson’s Step Forward | FanGraphs Baseball

Then, towards the end of May, the stuff shot up. Instead of averaging 90-91 with the fastball, he was suddenly at 93-94, topping out in the high-90s, and the slider went from 82 to 85. The results have been dramatically different since then:

18 starts, 109 innings, 49 runs, 29 walks, 102 strikeouts, 12 HR, 3.61 FIP.

That’s an impressive run for any pitcher, much less a 21-year-old rookie who had all of six starts at Double-A coming into the season. And, with the stuff taking a significant step forward, there’s a real reason for the improvement. His overall season line might not blow you away, but for the last three months, Anderson has been one of the best pitchers in baseball.
The future is looking so bright with Anderson and Cahill...I think I need to wear some shades