"I never worry about my job, never did," Guillen said before Miami faced the Mets at Citi Field on Friday. "Three-year contract, one-year contract, no contract. I don't [worry]."
The direction the club is heading remains unclear, but the rumors remain persistent.
"I expect to be back, 100 percent," Guillen said. "But it's not what I expect. These people who think I don't do my job, they should be managing this ballclub this year to see how it feels, to see how good they can be."
As an organization, the Marlins rarely respond to rumors. And that stance was repeated on Friday when team president David Samson offered no comment to any reports that are swirling.
Team owner Jeffrey Loria and president of baseball operations Larry Beinfest also were not commenting.
Beinfest, like Guillen, has been the subject of rumors. There are reports the team plans to either dismiss or reassign Beinfest.
Guillen spoke about his situation with the media during his daily pregame talk.
When asked about reports his job is on the line, Guillen responded by laughing.
"Can I say something about those people? Ha, ha, ha," Guillen said. "They make me laugh. The rumors and the people, they make me laugh."
The Marlins enter the weekend in last place in the National League East, no laughing matter considering the high expectations the club had in Spring Training.
"If Jeffrey doesn't think I'm doing the job I should do, it's not the first time he's fired a manager," Guillen said.
But Guillen isn't the only manager on the hot seat.
There are similar talks about Detroit's Jim Leyland and Boston's Bobby Valentine.
"You know why? Because we're in last place," Guillen said. "Leyland didn't do what he's supposed to do, I didn't do what I was supposed to do. Bobby didn't do what he's supposed to do. ... Their team's not playing good and we're in the spotlight.
"There's a lot of guys in last place that they're not talking about. They're not supposed to win, either."
Guillen hasn't had any meetings with Loria regarding next season. But the two talk regularly about the ballclub.
"About my job, I'm not gonna talk to anybody," Guillen said. "In my job, the worst thing about my job is packing. My house in Miami, I got a lot of clothes. But after that, nope."
The Marlins recognize there is collective blame to what went wrong.
"I let those guys down," Guillen said about the front office. "I don't fire everybody. Loria's the one who's gonna do it. I make people get fired. The thing about this group, we all failed, and we're all responsible for this.
"We all thought it was gonna be better for us. It wasn't. We might have picked the wrong guys. We might have picked the wrong team. We might have spent money on the wrong people. Just name it."