Sure, Arizona is mired in a losing streak of historic proportions. And every player on the Colorado Buffaloes roster will say there remains much work to be done, no matter how impressive the winning streak they suddenly have put together. Still, as the final seconds ticked away on the Buffs’ fifth straight win, this time a 67-60 decision against the reeling Wildcats Sunday night at the CU Events Center, it probably was easy for CU fans to savor the view in the Pac-12 Conference standings. The Buffs are well-positioned for a run at a top-four finish and the accompanying first-round bye at the league tournament next month in Las Vegas.