For the NFC North who wins is going to be irrelevant after this week, Seattle already owns the tie-breaker over GB and has about a 99.9999999% chance of owning the tie-breaker over Detroit via strength of victory and/or conference record if we just beat Arizona once out of the 2 games we play them. Really we just want Detroit and GB to lose as much as possible.
Edit: Actually you don't even need to go to strength of victory for us to win in a tie-breaker over Detroit.
Common Games (Minimum of 4)
@Carolina, Seattle Won, Det Lost
Vs. NYG, Seattle Won, Det Won
Vs. GB, Seattle Won, Det Won
@Arizona, Seattle ?, Det Lost
So we do have the tie-breaker over GB and Detroit.