What’s in a name? For Broncos defensive end Zach Kerr, bestowing a name — whether it’s upon a newborn son or a pit bull — is about family, personality, tradition and … favorite childhood films? The 334-pound defensive lineman, who joined the Broncos as a free agent back in March, has brought a big personality into the team’s locker room, even as he works himself back from a knee injury that has limited his playing time in the regular season.