Learning an entire offence that resulted in many professional NFL players being purged because of the complexity sounds like it would be difficult. Now run it with no huddle, up tempo in your first year? No wonder it failed. BUT Tannehill has had two years to learn to playbook and understand it. He will be able to command this offence properly at the line of scrimmage unlike ever before. This team is going to look completely different than it ever has since Tannehill has gotten here. Mark my words.