0-3. Panic time?

[GreenAndYellow12]

Whats up guys. So i'm in a 12 man keeper league. I drafted my team this offseason and got major props and nothing but compliments about my team. I thought the same way too, that I did a fairly good job drafting. Well, 3 weeks into the season. I'm a bust. I'm 0-3. Crapped the bed the first two weeks and ran into a better opponent this week. Here's my squad

Starters-
QB-Ryan Fitzpatrick
RB-Ahmad Bradshaw
RB-Rahshard Mendenhall
WR-Dez Bryant
WR-Julio Jones
WR-Jordy Nelson
TE-Kellen Winslow
Flex-Fred Davis
K:Robbie Gould
Def-Dolphins

Bench-
QB-Josh Freeman
RB-Kendall Hunter
RB-Issac Redman
WR-Robert Meachem
WR-Chad Ochocinco
K:Phil Dawson
Def-Patriots
IR-Jamaal Charles

Obviously the Jamaal Charles injury was devastating to my team. Because I went into the draft on a RB first strategy then wr's, then a QB. ( I debated on Freeman and Stafford, on the count of Staffords injury proneness, I took Freeman, unfortunately.
I also recently dropped Brandon Pettigrew for Fred Davis. I am kind of regretting that move. Wanting to drop Winslow and get Pettigrew back? What do you guys think?