When Loren Maazel was appointed music director of the New York Philharmonic in 2001, the press groaned openly that the 70-year-old conductor was too boring, didn’t fit the Phil’s sound well, and would surely be only a stopgap director, given his advanced age. But at a board meeting this week, several Philharmonic musicians were invited to make a presentation, during which they rallied behind Maazel, calling him “brilliant,” and asking that the board not rush to replace him when his contract expires in 2006. The musicians clearly enjoy working with Maazel, but their support also appears to have much to do with the dearth of potential candidates to replace him at the moment.