VANCOUVER, July 7 : Switzerland stayed patient and benefited from the right substitutes at the right time to edge past Colombia on penalties on Tuesday and reach the World Cup quarter-finals, Swiss coach Murat Yakin said.The shootout swung in Switzerland's favour when their goalkeeper Gregor Kobel saved Cucho Hernandez's penalty after Davinson Sanchez had earlier hit the crossbar for Colombia.Substitute Ruben Vargas then converted the winning spot kick for Switzerland to beat the South Americans 4-3 following a game that finished 0-0 after 120 minutes.He was one of several substitutions, including that of forward Cedric Itten a few minutes earlier and Zeki Amdouni a little later, that refreshed the Swiss frontline after the 87th minute. "It was difficult in the beginning but we stayed in i