Fox Sports South has an article up about Livan Hernandez, and his time with the Astros...
Hernandez said he had signed with the Astros in the offseason with the understanding that he would be their No. 4 starter. He struggled in two of his five spring training starts for the Astros, who released him with a 1-2 record and 5.63 ERA. Instead of waiting around for a team to give him another starting shot, Hernandez took the Braves’ offer.
Yes, he struggled in 40% of his starts. But perhaps this has something to do with it.