MILWAUKEE -- Ozzie Guillen described the previous day's loss as a kick in the stomach.
Although Guillen hopes the win will kick-start the Marlins, the manager kept his optimism in check.
"Every time I say that, we lose three in a row," Guillen said.
Miami sent third baseman Matt Dominguez and left-handed pitcher Rob Rasmussen to Houston.
"It's a huge move, I think, the front office, showing people how much we want to win," Guillen said. "They show how much we care about winning this year, they showed the players that they're willing to do anything to help this ballclub."
Hanley Ramirez hit an RBI single off reliever Manny Parra in the 10th inning, and Bell secured his 18th save -- one day after he gave up a two-run home run to Milwaukee's Aramis Ramirez in the 10th, allowing the Brewers to win a wild 13-12 game.
"We battled like we did yesterday and we came back," Bell said. "Guys gave us a chance to win. And trust me, I (felt) really bad yesterday and today. But today's a new day."
But Sanchez is struggling offensively, and was sent to the minors to make room for Lee.
After the Brewers left a pair of runners on base on the bottom of the ninth, Parra got two quick outs to start the 10th. But he gave up a double to Donovan Solano, then Ramirez singled up the middle to give the Marlins the lead.
"It's disappointing," Brewers manager Ron Roenicke said. "I felt we should have won that game today."
Parra (0-3) took the loss, and Wade LeBlanc got the win (1-0).
Axford said the Brewers' beleaguered bullpen still has confidence.
"Everyone's still up and still smiling," Axford said. "It's just unfortunate the way things are going right now."
The Brewers took the lead back in the bottom half of the seventh, when the Marlins intentionally walked Ryan Braun to get to Aramis Ramirez -- and Ramirez delivered a single to score Norichika Aoki for a 6-5 lead.
Marlins starter Josh Johnson gave up five runs -- all of which came in a rough second inning -- six hits and three walks in five innings. Johnson hadn't given up more than three runs in a single outing since a May 4 start against San Diego.
Justin Ruggiano hit a solo home run for Miami, his fifth of the season.
But Johnson got in trouble in the bottom half of the second, allowing a single to Aramis Ramirez and back-to-back walks to Corey Hart and Rickie Weeks to load the bases with no outs. Johnson then walked Kottaras to score a run, tying the game at 1.
Cesar Izturis then singled to center, scoring Hart and keeping the bases loaded. Wolf hit a ground ball back to shortstop but the Marlins couldn't convert a double play as Weeks scored for a 3-1 lead. Aoki then singled, scoring Kottaras for a 4-1 lead.
Morgan singled to load the bases again, this time for Braun with one out. Braun grounded out softly but Wolf scored for a 5-1 lead. Ramirez then flew out to end the inning.
Wolf cruised through six innings before giving up the solo shot to Ruggiano to lead off the seventh, cutting the Brewers' lead to 5-2.
Wolf got Omar Infante to fly out but allowed a walk to Austin Kearns and a single to Sanchez. Wolf struck out Hayes -- but Morrison pounded a pitch from Wolf off the facade in center field, tying the game.
Roenicke wanted to give Wolf a chance, after he had been betrayed by his bullpen several times this season.
"It came down to thinking it was Randy's game," Roenicke said.
The temperature was 100 degrees at the first pitch. ... Aoki extended his hitting streak to 11 games and made an impressive diving catch to end the Marlins' half of the third. ... Wednesday's attendance was 31,910.