Nick Saban doesn't watch the linemen too closely. At least in live action, he'll be the first to admit he's not the one to give detailed evaluations of the interior battles without looking at the tape.

Saban did give a few initial impressions of the retooled right side of the offensive line as the first week of practice ended with Saturday's scrimmage.

A true freshman continued on the path to being a rare first-year starter at tackle.

"Jonah Williams has done a really, really good job," Saban said after the first of two simulated games Saturday. "He's gotten a little bigger. He's gotten a little stronger. He's smart. He's confident."

Willams added 15 pounds to weigh in at 305 before practices began. He started at right tackle on A-Day and doesn't appear to be slipping on the depth chart. Cam Robinson was the first true freshman to start at tackle under Saban when he did so in 2014.

Saban said both Bradley Bozeman and 2015 starter Alphonse Taylor took reps at right guard Saturday.

The left side appears to be more stable with Robinson at tackle for the third straight year. Sophomore Lester Cotton stepping into the guard position vacated when Ross Pierschbacher moved to center.

With three weeks left before opening the season with USC, Saban said they're still tinkering with a few different combinations up front.

"So I'm pleased with the progress," Saban said, "not satisfied but certainly think that it's a better, more healthy, more depth situation than we had a year ago."