Broncos rookie running back Knowshon Moreno is working to learn the complex offense of new coach Josh McDaniels. "Running around like my head's cut off," Moreno said of the confusing playbook. Many players felt the same way as Moreno at the conclusion of the team's three-day minicamp this weekend. "They're going to make mistakes for a little while," McDaniels said. "That's what these practices are for, to get those kinks out and hopefully come to training camp and not have to iron them all out." Moreno realizes that he is going to have to study the books during his downtime. "You've got to really study, you've got to be in the playbook at night when you get home, even though it's late," said Moreno. "It's tough."