Prior to Thursday's contest with the Pirates, the White Sox designated the right-hander for assignment. They added right-hander Scott Carroll from Triple-A Charlotte, with Carroll moving into the long relief/spot starter role.
Noesi, 28, came into this season in the White Sox rotation, but also knowing that top prospect Carlos Rodon would soon be a big league starter and he could be the odd man out. Noesi started the home opener on April 10 but didn't start again until April 21 and May 2, making just one more start on May 25 in Toronto.
The relief role didn't seem to be a true fit for Noesi, who is making $1.95 million this season.
"Just the way the role evolved it's a better option for us to have Scotty," said White Sox manager Robin Ventura of the move. "He's better suited for that spot. I think for Hector he's probably more a starter than he is a long-relief guy.
"You end up bringing Scotty back and be able to give Hector that chance that if he can get somewhere else and get a shot at it, he can. The way the role evolved, Scotty is a better option at that moving forward."
Carroll, 30, produced a 1-1 record with a 3.12 ERA over 17 1/3 innings for the White Sox from April 26 to May 28.
Carroll understood why he was sent back to Charlotte but wasn't happy about the move.
"It was very disappointing," Carroll said. "Any time you do a job that you're asked to do and then you perform at that level that you're capable of and what's expected of you and the numbers don't shake out in your way, it's kind of disappointing. But you just have to go with it and keep my innings up and pitch well and get back up here.
"This is a business and I understand that. I didn't think dwelling on it was going to do me any good so I was able to go down there and just focus on what I needed to do to get back and continue to hone my craft and pitch well."
Ventura said that Carroll could be used as a starter to give Rodon a little extra rest, as they continue to monitor his first-year innings total. But Rodon will be taking his regular turn Saturday against the Rangers.
"I would love to start again but I'm not going to be picky and choosey," Carroll said. "There are some opportunities in this game to help a team. There are plenty of opportunities. If you pitch well and get guys out I think there's plenty of chances out there for a guy like myself."