IRVING, Texas -- Every day in practice, the defense opens practice the same way. The players run over bags at full speed with coaches on either side, hollering encouragement. Dallas Cowboys defensive coordinator Rod Marinelli wants his defense to be fast and furious. The drill might seem monotonous, but Marinelli is trying to perfect habits. Head coach Jason Garrett has called Marinelli a great speaker and his speech on habits is at the top. Marinelli said it is more than an oft-repeated coaching mantra: you are what you repeatedly do.
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