Jon Gruden, a familiar face to NFL fans, observed the Ravens' practices on Thursday and Friday as a guest of Head Coach John Harbaugh.
Harbaugh wanted Gruden to share his thoughts on the Ravens as a Super Bowl-winning head coach and former Monday Night Football analyst. Gruden and Harbaugh have a long relationship, and some of Baltimore's offensive coaches joined Harbaugh last year when he visited Gruden in Florida.
"He loves football, he's a great football coach, great football mind," Harbaugh said. "He studied our team, gave us some insight – players, coaches, schemes, all of it.
"We didn't give him the playbook, we didn't give him a script either. You can only go so far. He studied us. Basically, the message was, 'If I was game planning against you on defense, what would I do, how would I attack you?' He didn't just stop there. He watched our offensive guys. He had something for each player. Very, very detailed."
Harbaugh said Gruden wasn't shy about critiquing players face to face.
"He was letting them know where they could get better, which I respect," Harbaugh said. "I think a great coach is not afraid to tell people where they can improve. Doesn't every player want to know that? He has so much respect for guys, but still letting them know, 'Hey, this is what I see you can improve on.'"