(This is another in a series of 30 guest columns that will run in October, when optimism reigns supreme across the NBA. The theme will be “Five Reasons to Feel Positive About … ” We encourage you to follow the authors on Twitter and visit their sites. – CS) For fans of Golden State Warriors, the “We Believe” playoff run seems like it happened about 12 years ago and not five. One of the biggest upsets in NBA history against the