David Ross accepted a spanking-new Cubs cap from crew president Theo Epstein, situated its rightful dwelling atop his dome and grinned broadly. “It feels good to put [this] back on,” he mentioned. There’s no taking it off now. After the formality of Monday’s official introduction of, and press convention with, the 55th supervisor in Cubs historical past, Ross, 42, is locked into the duty — as Epstein put it, the “personal mission” — of reworking the tradition and surroundings on the main league degree. The mere destiny of considered one of baseball’s blue-blood franchises now hinges on a first-time supervisor’s reputed next-level folks abilities. “In the end, I think we came back to David’s special gifts