"Consistency, that's it," Hernandez said. "The ones who are getting better are becoming more consistent in their game."
Hernandez points out that the secondary pitches for Nathan Eovaldi and Henderson Alvarez are improved. Tom Koehler's confidence also is rising.
"You've got to stay consistent," Hernandez said. "That's it."
The Marlins have shown that consistency at home. Now, embarking on an 11-game road trip, they will have to carry it over to away parks.
No one needs to remind the Marlins they are 2-10 on the road, and their road ERA is 4.66 entering Thursday.
Because they are built around pitching, the Marlins are confident their road numbers will even out. At home, they've seen plenty of encouraging signs that they can hold down the opposition.
During their 8-1 homestand, the Marlins posted a 2.71 ERA, and they logged three shutouts. Opponents batted .207 during the nine games.
"They're becoming more confident in what they're doing," Hernandez said. "I think confidence is a big key to why they continue to make some strides. If you get enough results, you start to think you can do this right."
Joe Frisaro is a reporter for MLB.com. He writes a blog, called The Fish Pond. Follow him on Twitter