SCOTTSDALE, Ariz. -- The main reason the D-backs traded for Mark Trumbo was his power.
During batting practice on Thursday, they got a first-hand look at it.
Trumbo was hitting on Field 3, and beyond its left-field wall by about 20 feet is the stretch of grass where the D-backs players go through their agility drills.
On Thursday, they showed their agility by dodging home run balls off Trumbo's bat.
"There's people scattered all over," D-backs manager Kirk Gibson said with a smile. "I've got to take him off Field 3 tomorrow. That's not a good field for him to be at."
D-backs pitchers getting hitters' perspective
SCOTTSDALE, Ariz. -- Hitters are trained to pick up on the slightest signs that a pitcher is tipping his pitches, and they go to great lengths to make sure that information does not get back to that pitcher.
Unless, of course, it's a pitcher on their own team.
Over the last two days, D-backs pitchers and hitters have squared off in live batting-practice sessions and afterward they get together to share information.
"You pull him aside, and as a right-handed hitter I tell them what I'm looking for and maybe they can use that," veteran second baseman Aaron Hill said. "We want to get them better."
And occasionally a hitter will see a pitcher tipping his pitches, as Hill did with prospect Archie Bradley.
"I'm not going to tell you what it was," Hill said of what Bradley was doing. "But if you see something, you let them know. These are our guys. We want to help them."
• Whereas some pitchers rely on their catchers to call their games, new D-backs hurler Bronson Arroyo prefers to do that himself.
"Most of my career, I've called all of my games, to be honest with you," Arroyo said. "A lot more than most guys I've ever played with. It's been a big chess match for me, and what my eyes and my instincts tell me is what I feel like has gotten me to where I am in this game."
• The D-backs will have a shorter workout on Friday, with pitchers taking a break from throwing sessions.
• Shortstop Chris Owings has taken some reps at second base during drills to increase his versatility.
"We've got those guys popping back and forth a little bit," Gibson said. "We're pretty flexible with what we can do with guys. We're very talented and deep with the guys we have in the infield for sure."
Steve Gilbert is a reporter for MLB.com. Read his blog, Inside the D-backs, and follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.