Complex sentence: In 1986, Garnsworthy argued that teachers applying for positions in the Catholic system should not be required to have a letter of recommendation from a priest; his position was that this requirement prevented non-Catholics from seeking a publicly funded office.
Split into simpler sentences: In 1986, he argued that teachers applying for positions in the Catholic system should not be required to have a letter of recommendation from a priest. His position was that this requirement prevented non-Catholics from seeking a publicly funded office.