CBSSports.com ranks the NFL's top ten quarterbacks for 2021, with Patrick Mahomes at No. 1 and Matt Ryan and Matthew Stafford missing the cut. The site also lists Jared Goff as the best quarterback not in the top five. Mahomes is the clear-cut choice after another season in which he led the Kansas City Chiefs to the playoffs. He has all the tools necessary to continue his success: a deep ball that can leave defenses grasping at air; an ability to make every throw; and above-average mobility for a big player (5 feet 11, 221 pounds). Ryan had another strong season for the Atlanta Falcons, making the playoffs for the third time in four years. He continues to improve his game through coaching from Sean McVay and developing a good relationship with first-year head coach Dan Quinn. Stafford returned from a major knee injury and played well enough to earn a contract extension with the Detroit Lions. He'll be 35 years old in 2021 but could still have some good seasons left in him given his experience returning from injury. Goff did not have a great 2020 season but still managed to finish as the No. 2 quarterback behind Mahomes.