For a week, optimism filled Arizona Cardinals land.

After the Cardinals beat the division-rival Los Angeles Rams ahead of their Week 7 matchup with Denver, there was hope they could beat a Broncos team that, despite its strong record, had some weaknesses.

However, that wasn't the case. The Broncos downed the Cardinals 30 to 16 at State Farm Stadium, pushing Arizona to 2-5 on the season.

Four big takeaways from their Week 7 loss:

Cardinals Defense Comes Back Down to Earth

Defensive coordinator Nick Rallis' unit was the main headline in the win over the Rams, as the defense played extremely well.…