I have great players - How in the world is my team so bad?

[bclay]

8 team Roto
Hitting: R HR RBI SB AVG BB 2B 3B
Pitching: W SV K ERA WHIP L CG SH

I traded Berkman+Burnett for Teixiera back in April, and just traded Halladay for Cabrera. I don't know what else to do. Is this team just garbage? I have a lot of guys having bad starts, but at some point you have to wonder if they are just going to have a bad year...

C - R. Hernandez
1B - Teixiera
2B - Giles/Lowell
3B - Rolen
SS - Young
OF - M. Cabrera
OF - Dunn
OF - JD Drew
UTIL - Chipper
BN - Kearns
BN - Wilkerson
BN - Crosby
BN - McCann

SP - J. Santana
SP - F. Liriano
SP - Sabathia
SP - Mulder
SP - Hamels
RP - K Rod
RP - Ray
RP - Juilo/Saito
BN - D. Davis
BN - Billingsley
BN - K. Wood
BN - Gagne