So when does that begin to show up?
"We’ll see it in the next couple of years,” Castro said. "It’s just a matter of time before we start pulling it together.”
Castro has pulled it together in two seasons. He hit .300 with 10 homers while playing last season with Class A Lancaster (Calif.) and Double-A Corpus Christi.
Before Thursday’s game at the Brick, he was hitting .263.
J.R. Towles and Humberto Quintero are standing in the way of Castro making the Astros’ roster.
"I felt pretty good about what I learned last year in my first full season,” Castro said. "Overall, I’m happy with how I’ve progressed, and if that chance comes along, then I will make the most of it.”