In 2013, the D-backs were named by Wilson as baseball's top defensive team, but this year they entered Tuesday's game leading the National League in errors with 27.
"I think the most concerning thing for me is probably the defense," D-backs general manager Kevin Towers said. "We've always taken great pride in that."
It would appear that the struggles on offense might be a part of the problem.
"A lot of those are just guys that are taking their offensive struggles out to the field," Towers said of the miscues. "I think as some of our hitters start to pick it up and swing the bat better our defense will improve."
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.