Harty was signed at 2yr 5M per year to be the starting slot. That's why Beane loosened his purse strings.
For whatever reason, perhaps moving to a 12 which takes a receiver off the field or the rise of shakir, he is not getting alot of opportunities. Could be dorseys play calling too.
Clearly at this point he's a FA bust.
Sherfield was brought in to be a backup to Diggs or Davis. Sherfield hasn't been bad, just not alot of opportunities as Davis and Diggs rarely come off the field.
As far as Hines, losing his explosion on KR has hurt.
But he would most likely be a backup to Cook at this point.
Bills still needed a power RB for short yardage situations on 3rd or 4th down hence the Murray or Fournette signings.
It would be nice to line up Murray on 4th and short running behind Gilliam but strangely the bills continue to run shotgun on short yardage situations