A word that is used quite often when speaking about sports is confidence. When playing sports or watching sports it is important to have confidence in yourself, your team, or your favorite team when it comes to being a fan. I am not going to get into the whole roller coaster ride thing because we have covered that enough in the past; I will just say that the confidence of the Celtics fan base has rode the same path that the team has this year.   Going into the playoff the confidence of Celtics fans was obviously pretty shaky. We had experienced eighty-two games of ups and downs and weren't quite sure of what to expect. Lucky for us the Celtics took us to the top of the roller coaster and had Celtics fans thinking Banner 18 was no longer just a distant goal; it was now a reality.   ...