Mistakes are fine. Just don’t make the same one again.

Per Broncos rookie quarterback Drew Lock, that is the mission statement for him from offensive coordinator Rich Scangarello during the offseason program.

“(Scangarello has) definitely been OK with me making a mistake, but definitely not making the mistake twice,” Lock said Wednesday night during the “Round With The Rookies,” charity event at Top Golf in Centennial. “That’s been the one thing we’ve focused on. We knew I would have to be under center, call plays in the huddle, learn a pro-style offense — it’s all new to me. How’s he treated me is, ‘You can make a mistake, but let’s come back and fix it.’ That’s been the biggest thing for us.”

Selected in the second round on April 26, Lock started rookie camp on May 10 and is getting a crash course of the playbook.

How are things going so far?

“Comparing Day 1 to now, I would say 1,000 times better,” Lock said. “It took some extra grind and some extra work. You think you know what it takes, but then you realize quickly you have to put some more into it. Once I figured that out, it’s gone more smoothly.”

Combing the rookie camp and OTAs, Lock has been on the field for 10 workouts. New plays (which are wordier). New operation (calling plays in the huddle). New techniques (playing under center more often). And new role (back-up to Joe Flacco).

Flacco said at the start of OTAs that he is more than willing to help Lock develop, but his primary job is getting himself ready to help the Broncos win. Some (many?) took Flacco’s comment out of context. But not Lock.

Lock said it’s been “great” and “awesome” working with Flacco.

“I’ll ask Joe stuff in the QB room and I’ll ask Joe stuff on the field, just to figure out how he operates,” Lock said. “You’re that long in the league (12th year) and have won a Super Bowl, you’re doing something right. He’s a really good player and I’m just happy to learn from him.”

Another learning point for Lock: How an NFL team practices.

“I would say all of the team periods you have (is the biggest difference),” he said. “You probably do two individual (periods) and the rest is team or 7 on 7.”

Lock said some offensive installation remains before the end of next week’s minicamp.

“It’s about learning,” he said. “I’m not expected to be perfect right now. There’s a lot that I’ve had to learn where I have to realize that sometimes, I’m going to make a mistake and I have to learn from it.”

Wolfe loves defense. Defensive end Derek Wolfe is all in and all about coach Vic Fangio’s defense.

“Falling in love with the defense, actually,” he said after practice Thursday. “The last time I felt this was when I was first introduced to Wade (Phillips’) defense. I almost feel like I was born to play this defense.”

Asked to expand on that answer, Wolfe said: “We’re going to be moving. You beat the man in front of you and you beat him, beat him, beat him and then the next thing you know, we’re slanting somewhere and moving around and misdirecting. As far as the pass-rush game goes, we have some really fun pass-rush games that are just different. Things that aren’t just me setting things up for everybody else. It’s actually a little bit of the opposite. I can actually get back there and make some plays.”

Davis on draft. When the Broncos traded out of No. 10 in last month’s draft instead of taking linebacker Devin Bush, starting inside linebacker Todd Davis noticed.

“The talk of the town was, ‘Linebacker at No. 10,’ so I was definitely glued to my TV,” he said. “They didn’t pick a linebacker at 10 (and) I felt like, ‘OK, that shows a little trust in me and it shows I have to prove everybody right.’”

Footnote. Wolfe on cornerback Chris Harris’ re-worked contract and return to the Broncos this week: “Good for him. I’m glad that we got that taken care of because he’s definitely a pivotal part of our team. To see a guy get what he deserves is good.”