"Buck's a great manager, especially for a young team trying to establish itself," said Teixeira, who played under Showalter with the Rangers from 2003 through 2006. "I owe a lot of my early success to Buck believing in me as a young player.
"For me, it was that he always just told me, 'I know how hard it is to play this game. Don't take it too hard. Don't be too hard on yourself. As a rookie or as a veteran, you're going to fail a lot.'
"What he did for me as a young player was make me feel comfortable that I was going to play every day, I was going to be in the middle of the lineup and that he believed in me. Sometimes that's all a young player needs."
Teixeira said that Showalter's approach could succeed in Baltimore. The Orioles entered Thursday at 31-70, last in the American League East.
"The team has some young talent but hasn't been able to win," Teixeira said. "You bring a guy like Buck in to make those young players believe in themselves, teach them how to win, and then see what happens in the future."