Tua Tagovailoa

The fifth overall pick in last year's draft, Tagovailoa entered the season recovering from a serious hip injury and backing up Ryan Fitzpatrick. By Week 7, though, he was the starter. While he flashed a strong arm and dual-threat skills, he largely underwhelmed — in fact, he was twice pulled for Fitzpatrick. Tagovailoa ranked 24th in average target depth (7.8), 29th in completion percentage (64.1) and 30th in YPA (6.3). He really struggled in the face of the pass rush, as his on-target percentage under pressure was 40.7 percent (31st) for a 28.9 passer rating (33rd of 35 QBs). In Tua's defense, he was not served well by his teammates. Miami receivers struggled to get separation, which limited the yards after catch (27th) and forced Tua to throw 20.3 percent of his attempts into tight windows, fifth highest in the league (Fitzpatrick was first at 21.7 percent). The Dolphins addressed the problem, signing vertical-threat Will Fuller and drafting Tua's speedy former Alabama teammate 
Jaylen Waddle sixth overall. The Dolphins also swapped out OC Chan Gailey by promoting RB coach Eric Studesville and TE coach George Godsey as co-coordinators. How the offense will change is unclear, but for Tagovailoa's sake, hopefully it's a more innovative attack. The pressure is on for a big step forward this season.