When should a team take the three points or kick to the corner from a penalty?That was one of the major challenges that the Bulls had to contend with in last week’s 30-21 Champions Cup defeat to Northampton Saints, and one that they will grapple with once more in Saturday’s United Rugby Championship showdown with the Sharks in Durban (6pm start).Captain Elrigh Louw admitted yesterday that he was in two minds at times about whether to go for touch or not at Loftus Versfeld last week, and felt that it was their execution at those lineouts and mauls rather than the decision itself that…