Chasing a second victory of the season Justin Rose goes low four days in a row to comfortably take care of business in the ball-striking paradise that is historic Colonial Country Club. Welcome to the Monday Finish where the former U.S. Open champion held off the challenge from the current U.S. Open champion to become the fifth multiple winner of the 2017-18 FedExCup season as he cruised to a three-shot win. FIVE OBSERVATIONS 1. Rose – when he’s got his game clicking – is both awesome and annoying to watch. Awesome because the precision and skill with which he strikes…