“YU decreed that any Rabbi receiving ordination in its Yeshiva who takes a job at a Conservative shul (where all the jobs were) is automatically stripped of his ordination. ”
To the contrary, YU (and Ner Israel in Baltimore) encouraged its grads to take jobs at conservative shuls (or “orthodox” shuls that lacked mechitzahs) with the hope of making them orthodox. Two famous successes in that were Rabbi Feldman at Beth Jacob in Atlanta and Rabbi Riskin at Lincoln Square — they managed to get them to put in a mechitza and the rest is history.