The defensive tackles were hit especially hard by graduation, plus the late-February dismissals of tackles Marquis Anderson and Damon Williams.
Ndulue moved to tackle from defensive end, but the group is still very raw and inexperienced. Peterson, sophomore Jordan Phillips and redshirt freshman Jordan Wade were the only three tackles on the roster before Ndulue's shift inside.
At defensive end, the Sooners have lots of talented young players, but nearly all of them lack vital game experience.
“They're responding, but we have to be more consistent every day,” Montgomery said. “We need to get better every practice and I can't say we've done that every practice. There are days when we took a step forward and there are days when we took a step back.”
Through it all, though, Montgomery has tried to remain positive with his new players, and they seem to be responding to his style.
“He's fired up,” Ndulue said. “He's always energetic when he's in there. When you knock back the offensive lineman or do something good, he's jumping around smacking you in the back of the head. I like that a lot.”