The two starters from 2014 are gone, but Rahim Moore and Stevie Brown were signed in the offseason. Both have started in the NFL: Moore with Denver and Brown with the Giants.
O'Brien was asked about the idea of safeties being able to play free safety and strong safety, and vice versa. He acknowledged that it would be nice, but not a necessity.
"Ideally, you’d want them to be interchangeable," O'Brien said. "Ideally you would, but they don’t necessarily have to be interchangeable."
Instead, O'Brien peeled off five traits his safeties need to have to be successful.