With every passing game in the postseason of any sport, the competition naturally increases with difficulty. Only the best of the best move on through each round, and Sterling girls basketball is lucky enough to count themselves among the best eight teams in Class 4A. Over the weekend, in the regional that they hosted, the No. 5 Tigers first faced off with No. 28 Rifle and had little trouble taking the Bears down 63-39. The two squads started th…