There's a need to be realistic for a rookie making his first pro start at quarterback, especially one who has overcome a career-threatening hip injury suffered in November 2019.
Ryan Fitzpatrick was playing well for the 3-3 Dolphins, and he's very comfortable within the scheme. It should not be a surprise to see a Tua Tagovailoa-led offense take an initial step back.
As the story said, what we do know about Tua is he can make all the throws, including some Fitzpatrick can't. Tagovailoa's athleticism provides a new element, and he has spent the past few months soaking up everything from the 16-year veteran QB and 68-year-old offensive coordinator Chan Gailey.