Tua Tagovailoa's leadership key in Miami Dolphins' offensive success

Mike McDaniel has noticed the change in Tua Tagovailoa: His jovial nature on the Miami Dolphins' sideline during games. All of it plays a role in the fourth-year quarterback's output on game days, McDaniel said Wednesday, adding that much of Tagovailoa's growth on the field has started with internal work each week. Tagovailoa is leading an offense that ranks first in the league in nearly every important category, including points (43.3), total yards (550.3), yards rushing (188.3) and yards passing per game (362.0).