Rick has been a bit up and down over the last 5-6 years, but if you take out his Cy Young season, his fWAR has been between 1.7 and 3.0 every season. He's actually one of the most consistent performers in all of baseball, by seasons. He's on pace for about a 2.3 WAR, this year.
This is largely driven by maxing out IP's almost every year. fWAR loves IP'd.
His issue this year is a Dr. Jekyl & Mr. Hide syndrome. He's been about as inconsistent as he's probably ever been.
11.12 ERA his first 3 games
2.45 his next 4 games
4.62 the next 6 games
1.32 the next 2 games
12.75 his last 3 games
Or, breaking it down another way:
11.12 his first 3 games, 12.75 his last 3 games and 3.30 the 12 games in between.
When you look at from the second perspective, it looks like he's been fine for 12 games and has just had two really bad 3 game stretches. It give you hope he can have 12 game stretches of better than decent pitching, but it just doesn't feel that way right now, while he's in the midst of a horrible 3 game stretch.