Mack Hollins
Earlier in offseason, the wide receiver position was expected to change but it was hard to imagine it would change this much. The Bills were set to lose Gabe Davis in free agency, which came to fruition as he signed with the Jacksonville Jaguars.
The front office seemed to find their answer by signing Curtis Samuel and Mack Hollins, who appeared to be the combination that would replace their starting wide receiver from the past two years. Samuel would probably get most of the targets but Hollins is a big wide receiver that excels in run blocking, which was one of the reasons Davis led the position in snaps.
Since that point, the changes haven't stopped as the Bills would trade Stefon Diggs, draft Keon Coleman and sign veterans like Chase Claypool and Marquez Valdes-Scantling. There is still a roster spot for Mack Hollins this season because of some of those intangibles he brings but this is a position that Brandon Beane will look to address again next offseason with more cap space.