I just heard Wacha interviewed on Cardinals radio. They asked him if he was fatigued by his first full professional season. He said no. He said he was pitching on an extra day's rest and felt great. He just couldn't make his pitches. He was offered the season/fatigue out a couple of more times and wouldn't take it.
They asked him what Yadi said to him when he got pulled and he said (paraphrased) "I don't know. I was so pissed off that I wasn't listening."
Good interview, Michael. So proud he's an Aggie!