To paraphrase Rick Pitino, Ruben Brown isn't walking out the tunnel. If the Bills OL is going to improve this season and give the team a chance to compete for a Super Bowl, then they are going to need improvement from the players they currently have.
Brown will need to avoid the rookie wall and improve over the course of the season, Williams will need to settle in at guard and show that his problems at Carolina were injury related, and Dawkins will need to get back to his pre-COVID form. I think Morse and Feliciano are what they are at this point but if the other three can pick up their games then I think the line will be much stronger as a whole.