It’s no surprise Niners Nation is itching to see new head coach Jim Harbaugh in action after his smashing success the last four years at Stanford. But while most eyes remain riveted on Harbaugh, daily team observers are equally intrigued by his top two coaching hires by way of Palo Alto — offensive coordinator Greg Roman and defensive coordinator Vic Fangio. “It wasn’t until Harbaugh hired those two that Stanford really took off,” said one team insider who recently took the time to take an in-depth look at the Harbaugh regime at Stanford. “Harbaugh is not a great X’s and O’s guy. He just wanted to pass. Roman made the offense into a force with a more run-oriented mindset, but kept it very creative. What Stanford did with motion plays is unbelievable.” Fangio, meanwhile, offers invaluable experience. “Aside from Dick LeBeau and Dom Capers, who’s better working with the 3-4?” the insider said.