Garrett said that once Romo's back is in a good enough state for him to practise, the player is looking forward to working with new offensive coordinator Scott Linehan.
"Tony was here at the office," Garrett told the club's official website. "I had a chance to visit with him, as did Scott and some of the other guys on staff. He seems to be doing great. He's in his rehab and trying to make sure he does everything he can every day to get that back right and get back as soon as he can.
"He's certainly excited about [working with Linehan]. The system of offense stays in place. To have a guy like Scott come in and help us and help us evolve and grow is something we're all excited about it. Certainly Tony is, as the quarterback of this team."
Romo has been with the Cowboys since 2003.