When the Astros called up Brett Oberholtzer from Class AAA Oklahoma City on April 21 and sent him back down a day later, the 24-year-old lefthander believed he was a major league starter. When Oberholtzer returned in early July only to again quickly return to the RedHawks, his confidence never wavered. And when Oberholtzer turned Erik Bedard being scratched and Bud Norris being traded on the same day into seven strong innings of three-hit, no-run ball Wednesday during his debut as a starter, Oberholtzer believed the only thing he needed to stick in the majors was a real opportunity. The Astros gave the rookie the chance he had long wanted [...]