"I believe athleticism and speed are two of the best assets we have," Wren said.
Jason Heyward and the Uptons all have shown the potential to hit at least 20 home runs and record at least 20 stolen bases in a season. More important, since the start of the Grapefruit League season, each outfielder has shown a willingness to be aggressive by taking extra bases whenever possible.
"There are going to be some nights when we're going to get thrown out with nobody out or make the third out at third," manager Fredi Gonzalez said. "But for the most part, over a 162-game season, we're going to push the envelope a little bit."
Mark Bowman is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.