Last December the Bills signed Cole Beasley off the street, and they also signed John Brown. In the NFL, you need WRs to win down the stretch and win in playoffs. If the Bills have seven WR's who could contribute in the playoffs, they should keep them all. If Knox or Kincaid go down, in the playoffs, they will run 1 TE sets, they are not going to plug Morris into either of their spots for any meaningful number of playoff stats. If Harty, Sherfield, Davis or Diggs go down, the Bills will have to trot someone out play.
All roster decsions should be based on who do I want in the playoffs, given typical injury situations (other teams have injuries too, I think the Bills were the only playoff teams signing old recievers off the street in Dec of 2022 last year. I hope the Bills don't put themselves in that position again.
Ever year is different, but in the playoffs last year would you rather the Bills have had Isiah Hodgkins, Reggie Gilliam, or Quinton Morris on the roster?