This is more than a one offseason rebuild but at a minimum they should:
draft or sign a 2 down 1T
draft or sign a competent WR2
draft or sign a CB
draft a RB1
QB Prescott, Milton III, Grier
WR Lamb, Mingo, Tolbert, Turpin, Brooks, Flournoy
LT Guyton, Richards
LG Smith, Jones, Anderson
OC Beebe
RG Hoffman, Bass
RT Steele, Waletzko, Thomas
TE Ferguson, Schoonmaker, Spann-Ford, Fant, Stephens Jr.
RB Williams, Sanders, Vaughn, Luepke, Davis
RDE Kneeland, Turner, Wheat, Brown IV, Vilain,
DT Odighizuwa, Rogers
DT Smith, Thomas, Daxon
LDE Parsons, Williams (IR), Fowler,
MLB Sanborn
LB Liufau, Murray Jr., Overshown (IR), Clark, Johnson, Harris, Mogenson
CB Bland, Carson, Elam, DIggs (IR), Butler (IR), Hall, Pride, Booth, Barcoo
S Hooker, Mukuamu, Thomas, Bell, Wilson