PEORIA, Ariz. – Jack Zduriencik is a peculiar kind of impressive. He’s actually human, which qualifies as strange in a world of myth and hyperbole. Zduriencik, the Mariners’ general manager, has done a difficult job in a raw and real manner. You can evaluate him honestly, no smoke, no mirrors, all the good and bad splayed in front of him for all to see. He doesn’t always say what you want to hear. He doesn’t make the splashy free-agent acquisitions that you pray for, and he doesn’t make trades that send you into a playoffs-predicting frenzy. After four years and a 288-360 record during a meticulous rebuilding process, the first-time head honcho has had great and grating moments, experiencing the full range of this taxing life as a GM.