"As opposed to trying to reach an agreement to try and retain the more experienced controllers, they're trying to send as many people through the academy as they can," Costello said.
The IG report does not address the question of whether the current controller situation constitutes a safety problem.
The FAA has said safety is not being compromised. Costello, however, said he's concerned.
"It is jeopardizing safety and it is a major concern to me," he said. "It's a major concern to pilots, the airlines are concerned, everyone in the system recognizes it's a major problem. But the FAA is not willing to recognize it."
"The problem of not having enough controllers to open the positions when you need to open them means one of two things," Forrey said. "You're going to compromise safety or you're going to have to slow the system down."