To be honest most of the time schools don't care if you have a tefl or not. A lot of the schools if they have two people applying fora job, one with a degree and one without, the school is always going to hire the person with a degree. The only way someone without a degree will get a job at a school is if there are no other applicants and he already knows people inside the school. I know at one of the schools in this city they did hire a teacher without a degree, however they were unable to secure him a non b visa or work permit so he had to leave every three months.
He only lasted one academic year, because at immigration they informed him that he wouldn't be given a new tourist visa