Guillen, though, said it's a slap in the face to the current umps ... and he also doesn't understand how a computer could do a better job than a human who's standing just inches away from the pitches.
"Whoever came up with this idea never played the game," Guillen said. "Never played Little League baseball games."
Guillen is in favor of adding one rule back to the game ... telling us he'd like to see more roughness come back. He explained he's hoping the league will allow hard slides into second base and into home plate again eventually.
As for if Guillen will ever manage again -- he said he's hopeful after getting an interview with the San Diego Padres last year that a team will give him another shot.
"I love baseball," the 58-year-old said. "It's in my veins. I love to compete. I love to be around everything around baseball. It's something I miss."