What to do for playoffs?

I’m locked for the playoffs. How can I improve my team to win the championship?! I may need to target another Defense, but who would I drop if I did? It’s a 3WR standard scoring league.

QB – Carson Wentz, Aaronn Rodger (IR Spot)
RB – Jordan Howard, Kareem Hunt, Alfred Morris, Alex Collins
WR – DeAndre Hopkins, Thielen, Robby Anderson, Dez, Amari Cooper, Demaryius Thomas, Golden Tate
TE – Evan Engram
D/ST – Jags

do you feel real comfortable with that RB lineup?