When you look around at the banks of video monitors and hear officials talk of “CROs” using a “Hawk-Eye” system, you might think you had stepped into a military mission control room. But the only long bombs being watched are of the football variety. CRO is the Big Ten’s shorthand for “collaborative replay official,” and Hawk-Eye is the software they’ll be using to review plays on the football field this season — all part of high-tech upgrades conference officials showed off Tuesday at the Big Ten’s new state-of-the-art replay center at its Rosemont headquarters. “This is really the marriage of great people and great technology,” Commissioner Tony Petitti said.