Recent seasons have shown how a great relief corps can sometimes be a cheap and powerful way to bolster a team. Moreover, the move to convert semi-viable starters to relief pitchers has increased the number of legitimately good relievers rather than hoping to luck into the good Joel Hanrahan (excellent for two years, unusable otherwise).Josh Hader and Arodys Vizcaino represent two powerful arms in the reliever landscape. Hader sports a dynamic fastball and slider combination that made for one of[...]