Romo had a herniated disk repaired Dec. 27, and his rehab has progressed as planned.
"All I can go off of is what the doctors and trainers tell me, which is they think he'll make a full recovery and be fine," Cowboys executive vice president Stephen Jones said Wednesday. "He's obviously on a timeline, but there's no concern on his timeline this year missing anything like he did last year."
Romo had surgery last spring to remove a cyst from his back and did not take part in the conditioning program, on-field teaching sessions, organized team activities or minicamp. Once training camp began in late July, he did not miss a day of work until getting hurt in Week 16 against the Washington Redskins, necessitating the back surgery.
By having the surgery sooner, the Cowboys wanted Romo to have time to build his core and get in better condition than he was entering training camp last summer.
"I'm sure any player wants to be in even better condition than they were, but I don't think it was an issue with Tony," Jones said. "I thought Tony had an outstanding year, and his injury was a freak deal. He twisted out of a tackle trying to make a play and had an issue with his back."
Romo finished with 31 touchdown passes and 10 interceptions in 15 games with 3,828 yards passing. Jones said he was pleased with how the offense flowed, with Romo more involved in preparing the game plan than he had been in the past.
"I think that helped him," Jones said. "I think he wants to continue that, if not be more involved."
Romo will have his third playcaller in as many years with new passing game coordinator Scott Linehan taking over for Bill Callahan. Jason Garrett called plays from 2007 to 2012.
Jones said he is not worried there will be too many voices in the offensive meeting room.
"I think Jason's got it structured with his staff and Tony in a way that's going to be productive," Jones said. "I've sat in meetings and listened to him as to how we're going to go about our offense, and [I'm] very comfortable with how that's going to work. If anything, I think it'll be better how we're doing it."