D/ST pickup for week 2?

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I started SD D/ST week 1 but don't like their matchup this week. In fact, their matchup looks bad through week 4 and then week 5 is their bye. I'll be dropping them by then anyway and will hope to pick them up for week 6.

Do I drop them now for one of these defenses? I'm leaning toward Atlanta but have the #9 waiver (all waivers reset to reverse order of standings each Tuesday - players get locked each week when their game starts and all waivers clear on Thursday). If Atlanta is taken would you consider any of the others? Here are the defenses, week 1 totals, and week 2 matchups to consider.

I don't think it's worth putting in a waiver for another position (would only really consider Chris Henry for Chansi Stuckey/Steve Smith but I'm happy with my WRs) and since they reset each week, I figured I'd try to get my preferred defense.

SD (week 1 @Oak - 14.2 pts) (week 2 Bal)
Atl (week 1 Mia - 18 pts) (week 2 Car)
SF (week 1 @Ari - 10.8 pts) (week 2 Sea)
Cle (week 1 Min - 14 pts) (week 2 @Den)
Oak (week 1 SD - 9.6 pts) (week 2 @KC)

12 team league

QB: J. Cutler, M. Hasselbeck
RB: M. Forte, R. Rice, D. Brown, L. Washington, M. Bush, J. Davis
WR: G. Jennings, M. Colston, T. Houshmandzadeh, E. Royal, C. Henry
TE: J. Carlson
D/ST: Chargers
K: S. Hauschka