Morrison is batting .231 with 11 homers and 36 RBIs on the season. Like many Marlins, the 24-year-old has struggled to live up to high expectations.
"The guy has one hit in his last 17 at-bats, and I don't see any improvement," Guillen said. "I've got to give my team the best chance I can, especially with the way we are right now. I want better. I'm trying to be patient and try to get the pressure off him."
Morrison has just four hits over his last 10 games and has struggled mightily since hitting .310 over the first month of the season. Morrison's decline has caused some to wonder if he is playing hurt, but Guillen says that is not the case.
"I've asked him about it and he says he is fine," Guillen said. "I hope he is telling me the truth. If he's not, that's his problem."
Guillen, who has over 30 years of experience in professional baseball, cannot pinpoint why Morrison is struggling. Instead, he points to a variety of reasons.
"When you are going that way, everything is going bad," Guillen said. "Mechanically, mentally, facing tough pitching, everything is going bad. I hope we put him back at seventh and things start to get a little bit better."
The Marlins manager would like to see the rest of his lineup get better, as well. Miami has scored three runs or fewer in nine straight games heading into Saturday's contest against the Padres.
If the Marlins fail to score more than three on Saturday, they will become the first squad in franchise history to go 10 consecutive games without scoring four runs or more. But Guillen is hoping his team can avoid setting that record.
"We have a lot of people on base, but we're leading the league in LOB, left on base," Guillen said. "I'm pretty sure we lead the league in that. If you look at the way we leave people on base and how we get on base, it's amazing that we can't bring them in. Hopefully we start doing it today."