The Royals have opened up the competition at second base between incumbent Omar Infante, who is still owed $17.75 million on his contract through 2017, and Christian Colon, a former first-round pick who was one of the heroes of Game 5 of the World Series.
While Yost has been a fan of Infante's defense, the Royals won't tolerate another down season offensively.
"Infante's defense last year was just short of spectacular," Yost said.
But Infante produced a .552 OPS last season.
"I do know that two years ago he had a career-high 66 RBIs for us," Yost said. "We know that's in his reach."
Infante, too, believes he can bounce back, especially after having surgery last November to shave down a nagging bone spur in his right elbow. The surgery has allowed Infante to resume weightlifting again, something he had to abandon for the past three seasons.
"I feel more powerful now," he said.
Colon has shown he can handle big league pitching over his brief two-year stint -- a .743 OPS in 64 games.
"The main thing is," general manager Dayton Moore said, "is we need to play our best players. That's what it comes down to."