Romo has changed, and grew as a player, thus is why I have said all along, romo needed just to take a few more baby steps, not big steps but little baby steps.
No matter what you say, you cant hide the fact some things romo has said on leadership in the past. All the rah rah stuff isnt needed, didnt have to jump onto a player on field of play, but on sidelines. Didnt feel this was his team till 2 years after T O had left. These are all steps, baby steps that romo has taken in last few years, that I have harped on, over and over. Now, with romo growing up, being more of a leader in offseason, chewing out players, not being nonchalant or laid back sometimes like wade was. Want me to go on, romo is now taking on some of personality of head coach Jason Garrett, which an old saying is that the team takes on the personality of the head coach.
Then, playing with pain, its not so much the pain, but how romo played, and his teammates saw that on field of play, and have more respect for him, (at least some players do, not sure about Ogletree for example or Costa whatever the snap problem is for example). That plays huge dividends for your team when the whole team believes in your star elite qb. Remember, wasnt too long ago a player on the team was saying Kitna should get ample playing time as well as Romo, etc... All that has changed now for the good and commarde of the team.
Even other players are stepping up after seeing romo gut it out, like Dez, Felix, to name a few, heck, even spencer finally stepped up at the end of the game.