Position group that could be Seahawks Achilles heel in 2021

Nov 9, 2017; Glendale, AZ, USA; Seattle Seahawks cornerback Richard Sherman reacts after a penalty call in the second half against the Arizona Cardinals at University of Phoenix Stadium. Mandatory Credit: Mark J. Rebilas-USA TODAY Sports

The Seahawks roster is set up for great success in 2021. But there is one position group that could hold the entire team from reaching its potential. That position? The cornerbacks. There is no other unit on the Seattle team that has anywhere as close to the potential of being mediocre as does the cornerback group.

Not every Seahawks unit is among the best in the NFL but many are. The safeties should be very good. If Seattle adds a good third option at…