OLine timing. It's a scheme that is dependent on timing and orchestrated movement. Bye week came at a good time.
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Have you watched much football? Teams get out of synch when they don't play. Did you see the Seahawks on MNF? Bye weeks are good for healing, they are bad for rhythm.
Now, if the problem is a fundamentals thing, maybe they could have gotten some work done there, but traditionally bye weeks for KF involve getting more reps for subs and letting starters get over dings. The team often looks rusty coming out of them.