Four-star defensive lineman Antonio Coleman has flipped his commitment from Alabama to Auburn, again. Coleman, who attends Saraland (Ala.) High School, announced his decision Saturday during the Tigers’ Big Cat recruiting event. “What stuck out at Auburn is the coaches, the atmosphere and the opportunity I will have to play there,” Coleman told On3. It’s the second time that Coleman has shunned the Tide for the Tigers. He originally committed to Alabama in September, flipped to Auburn in December and then flipped back to Alabama in March. And now he’s back with Auburn, and defensive line coach…