The early Ottoman Empire occupied pretty much the same territory as the late Byzantine Empire, however, the Ottomans were able to expand furiously through the eastern mediterranean, while the Byzantines even at their strongest (Kommenoi) were unable to fully regain the balkans and asia minor even. And that's when Turks were a cultural and religious minority over much of the area they covered.
So what made the Ottomans so succesful compared to the Byzantines, and is there any scenario where the Byzantines can adopt this secret formula to survive and recover?