They did not do enough at WR. You have JA17 as your friggin QB, he needs as many targets and downfield threats as possible. Instead you traded away his #1 and his #2 left in FA and really didn’t replace either. Samuel you can argue may replace Davis, but there is definitely no #1 in that building.
Knox is invisible, Kincaid has cement hands, Cook drops too many easy balls, and you have no idea what you’re getting from the rookie Coleman. You can’t compete for a championship when the Bills always address the WR position as they do. You can, however, compete for an early playoff exit which they consistently do.