"Especially as we move forward here and you're trying to spell guys, his versatility should help out in that situation," Girardi said. "You get a guy that you can put at five different spots, that's pretty good."
• Photos of the day: Ackley shaves beard
Ackley is expected to join the team in Chicago on Friday, and he gives the Yankees three alums from the University of North Carolina on their active roster, joining left-hander Andrew Miller and right-hander Adam Warren.
"I think he's extremely talented," Warren said. "He's a good guy, works hard. It's just one of those things where you hope he can fit in with the club, and I think he will. He's super quiet. I think he plays hard, and just going off what I know at Carolina playing with him, he's super talented and a gamer. I'm hoping to see him do that over here."
The No. 2 overall pick in the 2009 Draft, Ackley has batted .215 with six homers over 85 games for Seattle this season. Ackley split time between second base and the outfield in '13, and he has spent the majority of his time as an outfielder over the past two years.
Since Ackley has only made one appearance at second base this season, the Yankees will not use him to supplant Stephen Drew as the starter. Girardi said that the Yanks will decide on a corresponding roster move on Friday, but Brendan Ryan and Garrett Jones could be on the roster bubble.
"He's played left, center and right, so it's a position where we can move him around all over there," Girardi said. "He has not played much second, so obviously he would have to work there before we would feel comfortable putting him there."
As for the pair of prospects the Yankees are sending to Seattle in return, Flores checked in as No. 28 on New York's list, according to MLBPipeline.com. Flores made his Major League debut on May 30 and had gone 7-for-32 (.219) over 12 games, and he had been playing with Triple-A Scranton/Wilkes-Barre.
Ramirez, meanwhile, had allowed five earned runs in three innings (15.00 ERA) in three appearances with the Yanks this season. He made his Major League debut last June and had a 5.40 ERA over eight big league appearances in 2014.
"I think the development in our system has given us more depth that we feel like we can do some things," Girardi said.