After 20 matches, not a whole lot separates Warringah and Northern Suburbs heading into tomorrow's Shute Shield decider at North Sydney Oval. For anyone sitting on the fence, here are five reasons why Warringah will win: Scrum After being dominated by Manly in the second northern beaches derby, the Warringah tight five have spent the last month working tirelessly to ensure their scrum could be used as a weapon in the finals, and it proved vital last weekend against the Marlins. The Norths scrum was dominated by Souths in the opening week of the playoffs and while it improved against Eastwood last weekend, the Norths big men will need a big effort to ensure parity at scrum time. Josh Holmes No player in the competition can turn a game on its head quite like Warringah scrumhalf Josh Holmes. While he isn't the most conventional No.9, on form he probably wouldn't look out of place in a gold jersey at the moment. Holmes sparks much of Warringah’s attack from the base of the