He joins Dion Lewis , LeGarrette Blount , James White , Donald Brown and Brandon Bolden on the current depth chart .
After the Patriots surprised many by not drafting a running back , Foster was the lone rookie signed .
Foster joins Dion Lewis , LeGarrette Blount , James White , Donald Brown and Brandon Bolden on the current depth chart .
After the Patriots surprised many by not drafting a running back , Foster was the lone rookie signed .