The Devil Rays have been in a near constant search for quality pitching throughout their 10-year existence. They may have found an ace in James Shields. Shields is overshadowed even in small-market Tampa by All-Star lefthander Scott Kazmir, but is beginning to make a name for himself by holding in check some powerful American League lineups. Through his start on Friday against the White Sox, Shields is leading the young Devil Rays with a 3-0 record and a 3.15 ERA.