"Quality starts" and Winning.

This is prompted by the excellent diary by LCJ on quality starts and Loiaza.  The question in many people's heads is how well does this correlate with team winning.  A quick google search turned up this Baseball Prospectus article.  Interest and informative, and the charts at the bottom definitely summed things up.
http://baseballprospectus.com/article.php?articleid=1623

Main points:
1.Quality starts is not what it used to be.
2.There is a steady decline in QS% since 1992, corresponding to the beginning of the high offense era.
3.No-decisions in quality starts have been rising steadily.
4.Team winning percentage in quality starts hasn't shown a consistent trend over time, usually around 70%.

Another article from Diamond Minds.  It is a bit outdated (only stats from pre-1992):
http://www.diamond-mind.com/articles/qstart.htm
But it showed that ERA differential and IPs are quite dramatic.  Of course this is the pre-Palmerio era.  Enjoy.