The Arizona Wildcats’ summertime recruiting picked up steam early Monday, when the Wildcats hosted top-15 big man Kaleb Tarczewski for an unofficial visit. Tarczewski, a 7-foot and 220-pound center from St. Mark’s School of Massachusetts, detoured through Tucson on his way back from the weekend’s Rose City Showcase in Portland, Ore. Although Tarczewski’s travel-team coach, John Carroll, declined to comment on his recruitment Monday, Tarczewski is still reportedly considering a number of elite schools…