Dobbs went 3-for-4 with a home run and two RBIs against the Blue Jays while filling in for Gaby Sanchez at first. The 33-year-old's success at the plate was part of a nine-run offensive explosion that helped the Marlins snap a six-game losing streak.
"You're not going to change a lineup, unless there is a lefty pitching or something like that, the day after you score nine runs," Guillen said. "I think if we continue to play like this, then this is the lineup we're going to keep."
Dobbs is batting .291 with a home run and 16 RBIs over 102 at-bats this season. Sanchez is batting .195 with two home runs and 16 RBIs over 174 at-bats. The Marlins have also used Logan Morrison and Austin Kearns at first base at times this season.
The Marlins' offense has struggled in June, scoring five runs or fewer in every game prior to Sunday's 9-0 victory over the Blue Jays. The previous time the Marlins scored over five runs was on May 25 against the Giants.
"Right now, I don't think anybody should be asking for playing time," Guillen said. "I would have a lot of [nerve] to go ask for playing time if I was playing the way they're playing."
While Guillen did not say that Dobbs is his new first baseman going forward, he did suggest that he will play whoever is having success.
"I think Dobbs is swinging the bat better, and with the way we played yesterday, everyone should be back in the lineup," Guillen said. "That's the reason we did it. If we win today, we'll see the same lineup [tomorrow]. If we continue to win, then in the games we have left, that's going to be the same lineup. I'm going to put the guys in that I think have the best chance to win the game for us."