"Carrera has come up this year, his swing is a little bit better, more consistent. But he still needs to continue in his control of the strike zone," Acta said. "His walk-to-strikeout ratio's not good. It's not just necessarily about walking. It's about controlling the strike zone so you can handle better pitches and get a higher on-base percentage. His game depends so much on being on base because of his velocity. He's made some improvement over last year, but he still needs to show more."
In his 42 games this season, Carrera has walked just six times compared to 33 strikeouts. He's hitting .242 with a pair of home runs and seven RBIs. He appeared in 68 games for the Tribe last season, batting .243, but his on-base percentage was .020 points higher (.301) than it is this season (.281).
When it comes to evaluating all his midseason call-ups, Acta said, the proof is in the numbers.
"You need to perform. That's the bottom line," Acta said. "This is not scouting school. I'm not sitting here evaluating how fast a guy is or anything like that. It's about performing. We've given guys opportunities. Some others haven't gotten as much of an opportunity that we'd like to. And you can look at the numbers. That's what this game is all about."