Jason Garrett: Cowboys’ practice “wasn’t as good as it needs to be”

Cowboys coach Jason Garrett is not happy with the effort of his team during Saturday morning’s walk-through practice. “It wasn’t as good as it needs to be,” Garrett said, via Charean Williams of the Star-Telegram. “The standard for a walk-through is high. Just because you are walking through, and it’s not a full-speed practice, you…