There was talk of Odell Beckham Jr. arriving in Baltimore on Ravens owner Steve Bisciotti’s private jet, and that his motorcade to The Castle would rival that of any president. But there was a different side of Beckham at his introductory news conference Thursday. He was calm, secure, engaging and at times humorous, a far cry from what we’ve seen on TV or in recent body cam footage. That Beckham was loud, obnoxious, selfish and fined several times by the NFL for touchdown celebrations, improper game attire and various unsportsmanlike conduct penalties. But maybe Beckham, at age 30, has matured, and could become a leader on offense.