Verducci makes the case that the Rangers should use Neftali Feliz as a starting pitcher. The argument for using Black Jack Soria as a starter is the same. I know they've already decided Soria is the closer, but everyone involved should reconsider.
As Verducci says, there's a market inefficiency here. Closers are overvalued by many GMs, and so is the virtually meaningless save statistic.
What some smart team should do is take a decent +0.5 WAR relief pitcher and anoint him "The Closer." He'll probably do OK and rack up 30 or 35 saves. Then you find some dumb team looking for a "proven closer" and you trade him for a juicy prospect. The next year, you anoint another "Closer," do the same thing, and trade him for another juicy prospect. Keep doing this as long as closers are overvalued.
Meanwhile, you use your best relief pitcher as your fireman, in high-leverage situations, when there are two on and one out in the sixth, your starter's just walked somebody on four pitches, and you're up by a run.