ANAHEIM -- In his first full season with the Angels, Mark Trumbo has looked nothing like the rookie he is -- and he's got the numbers to prove it.

After hitting a home run and driving in four runs on Thursday against the Twins, Trumbo is on pace to become the first rookie in Angels history to lead the team in both home runs (21) and RBIs (62).

The Halos' first baseman has also banged out three home runs and 18 RBIs in his last 13 games, and driven in at least one with each of his last 10 hits heading into play on Friday.

"He's swinging the bat better, and we've been setting the table better for him," Angels manager Mike Scioscia said. "His opportunities are a little bit up, and he's taking advantage of it."

Making adjustments around how he feels at the plate, Trumbo hasn't made any measurable changes the last few weeks.

"I didn't really know what to imagine this season," Trumbo said. "I am fortunate to get the opportunities and, with enough at-bats, I've found a groove."

While he has moved back and forth between the six- and seven-hole, Trumbo has compiled two home runs and seven RBIs in his last two games in the six-spot.

"Whether he is hitting sixth or seventh isn't as important as guys in front of him setting the table," Scioscia said. "This last week, he's had some combination of guys doing that for him."

Pineiro takes move to 'pen in stride

ANAHEIM -- While Joel Pineiro could have pouted after his demotion from the starting rotation to the bullpen on Thursday, the Angels' right-hander has instead decided to take things in stride.

"I'm too old to start getting mad and yelling," Pineiro said before Friday's game against the Mariners. "I'm healthy and feel good. That is the decision they made, so I'll go with it.

"How I look at it, we are 1-0 with me in the bullpen."

Had such a decision happened at the beginning of his career, Pineiro said he may have been more upset. Ten years in the Majors have taught him otherwise.

Already looking at video of his previous starts with pitching coach Mike Butcher, Pineiro believes his issues boil down to where he's releasing the ball.

He'll try to work on that in the bullpen, realizing that it could take only one strong performance to get back into a groove.

"The No. 1 thing is getting prepared quicker, but maybe I'll stay fresher in that process," Pineiro said. "Maybe I'll feel strong for one inning and feel better. We'll find out."

In his last four starts, Pineiro went 0-3 with a 14.85 ERA. He also gave up a total of 22 earned runs and 29 hits in 13 1/3 innings.

"Our goal is to have him find it and get back out there," Angels manager Mike Scioscia said. "We have a lot of confidence in JP when he is on. We saw it early in the year, and it has been diluted as the season has gone on. It's his command, too, and he needs to get that back."

Worth noting

• While the Angels still need a fifth starter after Pineiro was moved to the bullpen on Thursday, Scioscia still would not say who will fill the spot.

"Dan Haren will start Tuesday in New York, and we will go from there. We just have to see where we are when we get there. We have an idea what we are doing," said Scioscia.

• With Hank Conger continuing to play well behind the dish and at the plate since being optioned to Triple-A Salt Lake on July 19, Scioscia said he could be recalled before rosters expand on Sept. 1.

"Hopefully, he'll use the experience he got up here and make adjustments down there to be ready for his next opportunity," said Scioscia.

• The Angels are 15-4 in their last 19 home games.

• Trumbo is just the sixth Angels rookie with 20 home runs or more, and the first since Tim Salmon with 31 in 1993.