MIAMI -- Brian Flores is eager to see opposing defensive coordinators sweat when they see the Miami Dolphins' offense in 2021. Speed is the top skill set that makes defenses stress, and the Dolphins coach had a mischievous smirk when asked about the conflict his new dynamic playmakers -- first-round pick Jaylen Waddle and free-agent signee William Fuller V -- will create. No Dolphins position group improved more than wide receiver this offseason, and it's clear quarterback Tua Tagovailoa now has enough players to flourish as he enters an important Year 2. Honestly, none of Miami's rebuild will matter as much if Tagovailoa doesn't make the next step.