Is My Team Too Slump-prone?

[PoorDecisionsDaily]

As a relative newbie to the fantasy world, I'm primarily concerned about the potential for extreme streakiness of my team. I trended towards power numbers or avg/OBP in terms of drafting, but have gotten burned in the last two weeks with injuries (Jones, McCann, Jones) and streaky play (Mr. Uggla, and Pence too - to a certain extent). Is my team stable enough to ride for a while, or do I need to think about moves for the future, particularly in changes to the bench (adding RPs, picking different players that target 2B/3B/SS, etc).

Thanks!

League Type: Mixed
Teams: 10
6x6: R, HR, RBI, SB, AVG, OPS / W, SHO, SV, K, ERA, WHIP
Scoring: Head 2 Head

C: McCann
1B: Berkman
2B: Uggla
3B: C. Jones
SS: Scutaro (Guzman is currently on the DL)
OF: Soriano
OF: A. Jones
OF: Pence
UTIL: Votto
BN: Bonifacio
BN: Chris Young (Ariz)
BN: M. Bradley
DL: C. Guzman

SP: Haren
SP: Vazquez
SP: Oswalt
RP: Rivera
RP: Qualls
P: Harang
P: Slowey
P: Davies
DL: T. Hoffman