ANAHEIM -- Time in the bullpen is apparently just what Josh Collmenter needed to get his mechanics in order.

The D-backs right-hander began the season in the rotation, but after four starts and a 9.82 ERA, the team shifted him to a relief role.

In eight games out of the bullpen, Collmenter has a 1.53 ERA. Rather than a switch in role, it's an improvement in his mechanics that have led to the success.

"Now that my mechanics are back on track, everything feels normal and natural and I don't have to do anything out of the ordinary to get the ball to do what I want it to," Collmenter said.

With his mechanics out of whack as a starter, Collmenter had a hard time putting his fastball where he wanted it.

"I was forcing some things and the ball was coming back over the plate," Collmenter said. "Those balls ended up doing a lot of damage. I'm back to being able to pound both sides of the plate with my fastball. Offspeed stuff was good, but it was just the fastball control wasn't there. It's good to get that back."

Montero's insight, patience pay off vs. Haren

ANAHEIM -- As he stood on the on-deck circle and watched Angels pitching coach Mike Butcher talk to right-hander Dan Haren on Friday, D-backs catcher Miguel Montero was pretty sure he knew what was being said by his former teammate.

The D-backs had a runner at second with two outs in the sixth inning and a 1-0 lead. The left-handed-hitting Montero was due up, with righty-swinging Aaron Hill to follow. Montero's unique insight to the situation led to a crucial walk.

"He said, 'If we fall behind, yeah, we'll walk him, but if we get ahead, I'll get him out,'" Montero said of what Haren told Butcher. "I caught him, and he's said that before to me."

So when he walked into the batter's box, Montero knew what he was going to do, or rather what he was not going to do.

"You just kind of realize what the situation dictates," Montero said. "I figured he was going to try to get me to chase. I was pretty much taking all the way. I was going to be patient, really patient. I was going to try not to be fooled."

In his first at-bat of the game, Montero saw six pitches, and in the at-bat prior to the sixth inning, he saw 12 pitches and fouled off six straight before singling.

"I had a real good at-bat the at-bat before that and I had seen a lot of his pitches in the first two at-bats, so I was pretty comfortable going into that at-bat," Montero said.

After Montero took his walk, Hill stepped in and laced a 1-0 cutter over the wall in left to put the D-backs up, 4-0.