Hunter has gone winless in his last six starts, while Avery had three hits in his last 28 at-bats to drop his average to .217 on the season.
Orioles manager Buck Showalter was seeing some things in Avery's swing that needed to be corrected in the Minor Leagues.
"He got a little pull conscience here and that makes him so susceptible to the breaking ball," Showalter said.
But Baltimore's skipper also had some very positive things to say about the 22-year-old rookie.
"He can let the ball travel, he's got athletic skills. He gave us some juice, and you can see why we are excited about him. ... I love the fact that he came in here and let it rip and was aggressive and was selective for quite a while. I just want him to get back to trusting himself, get back here and get back to the things he was doing that made everybody excited about him, like we still are. I feel as good about him the day I sent him out as I did before.
"He's got a future."
Avery would likely see time in left or center field in the upcoming days, according to Showalter.
Showalter also had a lot of praise to heap on Gonzalez, who was 2-1 with one save and a 1.50 ERA over 30 innings at Norfolk, and credited Fred Ferreira -- executive director of international recruiting -- with bringing Gonzalez over to Baltimore.
"Fred saw him in the Caribbean World Series pitching for Mexico and wanted to sign him," Showalter said. "He's been impressive down there -- his command. Miguel has been pitching as well as anyone down there. I know he's excited. Just another luxury we have with having someone like Fred in our organization."
Gonzalez, who was signed by the Orioles as a Minor League free agent in February, had 36 strikeouts compared to five walks and allowed just 10 hits at Triple-A.