Today’s NFL is very business and entertainment-driven. The NFL cares more about corporate sponsorship/revenues than the fans. Even the players are savvy as it relates to social media and carefully cultivate their images.,The CBA in its current iteration, is specific and restrictive in what players are permitted to do during mini-camps as well as training camps; this would more than likely fly in the face of what these hard-nosed, disciplinarian coaches want to do with the team. Additionally, I think today’s players are softer than their predecessors, so that’s another difference.
Can you imagine Jimmy Johnson, Bill Parcells or Tom Landry coaching today? I think they would be so frustrated given the restrictions placed upon them and the difference in the attitudes of the players.