Bruins' ever-changing offense getting the Chip Kelly treatment

"So where we even line up for stretches is even brand new to them. So every day, I'm just hoping they get a little bit better.

Progress has been hard to gauge at the midpoint of spring practices. Dorian Thompson-Robinson, a contender for starting quarterback, is among a handful of potential contributors who are finishing their senior year of high school. Tight end Caleb Wilson is among players who have been slowed or sidelined because of injuries.

Coaches"It just teaches us just to have some diversity," Howard said of continually switching offenses. "It's a challenge but we're embracing it and taking it on. We're getting a lot of help from different coaches and we're all helping each other,…