"We were talking, and it's just like I know what I have to do," Cahill said. "Just kind of thinking too much. Just do what's comfortable. Just find something that feels comfortable and go with it."
Both Cahill and catcher Miguel Montero said that Cahill's arm slot seemed to change during his loss to the Nationals.
Cahill is 0-4 with a 9.30 ERA in June, and he has one more start left in the month. That's Sunday against the Braves.
Avoiding the temptation to tinker with his mechanics is a constant battle for Cahill.
"It's tough, because I'm always trying to get better and more consistent," Cahill said. "Because even when I'm going good, I'm trying to cut down on the walks, which usually is a consistent thing. Sometimes it just comes down to the simple fact that I need to make better pitches."
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.