Answer
The Miami Dolphins acquired Josh Rosen from the Arizona Cardinals in 2019 in exchange for a 2019 second-round pick and a 2020 fifth-round pick. Rosen was the 10th overall pick in the 2018 NFL Draft by the Cardinals, but struggled during his time in Arizona, starting only 13 games. The Dolphins were looking for a young quarterback to develop, and saw potential in Rosen's strong arm and athleticism.