If Horn plays, play Horn. The Saints will start to click eventually and if not will fall behind and need to pass to catch up. Morgan would be my next play, even against the Steelers. The one way to attack the Steelers is through the air. Thrash is not a good play as McNabb hasn't thrown a TD pass yet and the Skins have a solid secondary. It is risky to play weaker players in order to negate your opponant, especially risky with a running QB like McNabb.
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