Feb. 17 feels like a lifetime ago. It was only a month ago, but it feels like a lifetime. Part of that is the endless monolith that is spring training. And part of it is the magnitude of adversity heaped upon the Yankees. Think about Feb. 17. The Yankees had a healthy rotation. Their center fielder was being gently shifted to left. Their first baseman vowed to atone for one of the least productive seasons of his career. You know the rest. A bulging disc felled Phil Hughes as he sprinted to cover first base during a drill on Feb. 18. Six days later, a J.A. Happ fastball broke Curtis Granderson’s forearm. Then, on March 5, Mark Teixeira strained his wrist while swinging a weighted bat before a WBC exhibition game. Those injuries occurred, in a tidy coincidence, in order of severity. Hughes figures to miss a start or two, but be fine. There is a certainty in a broken bone: Granderson is expected to be back by May. Teixeira’s prognosis is dicey. There’s a 70-percent chance he avoids season-ending surgery. That isn’t exactly a heartening prognosis. Through it all, manager Joe Girardi has maintained his steadfast faith in his team’s ability. This team won 95 games in 2012. Even with substantial losses, Girardi said once camp began they could repeat that feat this year. When asked about all the injuries on Tuesday, he did not waver. “I believe in the guys that we’re going to put on the field,” he said. “I believe that we’re still talented, even though we have some injuries to we have to deal with. And you find a way to get it done.”