Willis' $67.5M deal signals commitment, but rebuilding roster and backup competition create uncertainty.

Malik Willis signed a three-year, $67.5 million deal with the Dolphins, his third NFL team in four years; the three-year contract implies that he is the QB of the present and immediate future in Miami, but nothing is assured; Willis is being thrown into a less-than-advantageous position, quarterbacking a rebuilding roster under rookie head coach Jeff Hafley; Quinn Ewers, a second-year backup with collegiate pedigree and three NFL starts, waits in the wings; Willis' first summer as a starter will be critical toward establishing himself as a long-term answer in Miami or elsewhere.