With the prices that relievers are fetching on the FA market, with the trend towards contenders building shutdown bullpens, I think we have to be careful before making assumptions that guys like Biagini and Osuna would provide more "value" as starters. That way of thinking seems a bit dated. Seems like monetary values on pitchers are falling out of line with WAR and more in line with WPA (tough it's still somewhere in the middle). By wpa, Osuna was second only to Sanchez in value and Biagini was worth more than Stroman.