Sadly, I don't play in a NL Only league, and I know exactly who you are talking about. Let's just say I was desperate for saves last year.
Being the lefty that he is, I don't see him winning the job. Tsao will be given every opportunity, and Hurdle seems to be really high on him excelling in the role. Fuentes' WHIP is just too high for a Coors pitcher, even when he's healthy.