OWINGS MILLS, Md. — Nobody was safe from John Harbaugh on Thursday as the Ravens held their toughest practice of the first week of training camp. After the practice officials were slow to blow the whistle on one particular play, the eighth-year head coach chastised them from the middle of the field, screaming, “Get your [stuff] together! You’re getting lunch and you’re getting paid!” Of course, they weren’t alone as Harbaugh challenged his young defensive linemen to be tougher and quicker firing off the ball during 11-on-11 short-yardage drills during the first half of practice. The coach singled out rookie defensive tackle Carl Davis and second-year defensive end Brent Urban at different points, but the coach said the ranting was calculated in trying to challenge young players the Ravens figure to count on heavily this season. “It was a very physical, very tough practice,” Harbaugh said. “The guys fought through it really well. It’s always the one where — at least in my case — this coach gets a little crazy, because it’s a tough step to take from the hitting level of intensity to this level of intensity. “For me, it’s more of a feel thing than anything. If