SAN FRANCISCO -- The Giants adjusted the roster as anticipated, but manager Bruce Bochy is far from done making moves.

Tweaking the lineup could be an everyday occurrence for Bochy, who made multiple adjustments Tuesday after the Giants activated outfielder Andres Torres and utility man Mark DeRosa from the 15-day disabled list. Infielders Emmanuel Burriss and Ryan Rohlinger were optioned to Triple-A Fresno.

Pat Burrell, Nate Schierholtz and Miguel Tejada were benched as Torres and DeRosa immediately rejoined the lineup in center field and at third base, respectively. Burrell and Tejada had started all but three of San Francisco's previous 34 games, while Schierholtz had started six of San Francisco's previous eight games.

But Bochy indicated that he'd continue to consider batter-against-pitcher matchups and whether a player is currently swinging a hot bat when he composes each day's lineup.

"I'm going to try to keep them all involved," Bochy said, referring to the outfield quintet of Torres, Burrell, Schierholtz, Aaron Rowand and Cody Ross. Bochy will keep Darren Ford, San Francisco's sixth outfielder, in reserve as a late-game pinch-running threat.

Bochy might have an easier time shuffling DeRosa, Tejada and Mike Fontenot in and out of the lineup, since the three of them can share shortstop and third base. "I see that kind of rotating," said Bochy, adding that he can use DeRosa or Fontenot to rest second baseman Freddy Sanchez. "I don't want anybody sitting too long."

That includes Tejada, the .195-hitting free-agent acquisition who'll earn $6.5 million this year. Bochy spoke personally with Tejada to reassure the 14-year veteran.

"The last thing I want is to [give] the impression that we've lost confidence in him, because we haven't," Bochy said.

Predictably, both DeRosa (left wrist inflammation) and Torres (left Achilles tendon) pronounced themselves fit. DeRosa was particularly enthusiastic, insisting that he hasn't felt this good since 2009, before he underwent the first of his two wrist surgeries.

"What I'm excited about is I feel like I can go up there and be productive and not have to 'ticky-tack' my way through at-bats," said DeRosa, who has appeared in 37 games for the Giants since they signed him to a two-year, $12 million deal before the 2010 season. "... I feel like if a pitcher makes a mistake, I can capitalize. That's something I haven't been able to do."

DeRosa and Torres also sounded certain that they'll be subject to Bochy's lineup changes.

"I'm sure there'll be a lot of moving parts with the offense until we get going," DeRosa said.

"Whether I'm playing or not, I'm going to support my team," Torres said.

Burriss, Rohlinger headed to Triple-A Fresno

SAN FRANCISCO -- With Mark DeRosa and Andres Torres returning from the 15-day disabled list before Tuesday night's game, the Giants sent Emmanuel Burriss and Ryan Rohlinger to Triple-A Fresno.

Giants manager Bruce Bochy said he wanted to give the two infielders an opportunity to play every day with Fresno, and he elected to send down Burriss instead of outfielder Darren Ford simply because of the additional dimension Ford's quickness brings to the team, even if it leaves the Giants with an abundance of outfielders.

"We have six outfielders, which is a little unusual, but with the speed that he gives us, that gives us another weapon we can use late in the ballgame," Bochy said. "The way that we play is we play a lot of close ballgames, so it's nice to have that weapon."

Rohlinger hardly saw the field for the Giants this year, striking out once on May 3 against the Mets -- his only at-bat of the season. Burriss, meanwhile, is 4-for-15 at the plate on the year, although none of his hits have gone for extra bases, and he did not draw any walks while striking out three times.

Although the move forced Burriss back to Fresno, where he was batting .344 with 15 stolen bases before being called up to the Giants, Bochy said he liked what he saw from the switch-hitting infielder in the Majors over the last two weeks.

"The times he's played up here, he looks confident. He's found a way to get on base," Bochy said. "Sometimes they weren't pretty hits, but because of his speed, they worked."

Casilla feels good after simulated game

SAN FRANCISCO -- Right-handed reliever Santiago Casilla threw a simulated game Tuesday afternoon, tossing 35 pitches as he continues to recover from an inflamed right elbow that has kept him on the disabled list since early April.

Casilla faced Emmanuel Burriss, Ryan Rohlinger and Darren Ford before Tuesday night's game against Arizona. The reliever said he was able to throw all of his pitches, felt good and is eager to get back on the mound as soon as possible.

"I want to pitch," said Casilla, who has only thrown one inning this season, giving up one run on one hit and one walk while recording one strikeout on March 31. "I feel tired of watching them play. I need to play."

Manager Bruce Bochy said the next step for the right-hander will be a rehab assignment, and there is a "good chance" Casilla will start for Class A San Jose, though both were unsure about exactly when the rehab stint will begin.

"We'll see how he comes out of this and where he's at tomorrow," Bochy said.