While I believe we need qualified teachers, I know that there are people with knowledge and skills who are not would like to reach and shouldn't be barred from teaching due to a lack of teacher certification. What if a retired CEO would like to teach in a middle school? Principals should have flexibility to hire whom they feel would do the best job. Currently a retired Supreme Court justice couldn't teach at a public school. Plus research shows that teaching programs at colleges are watered down many teachers graduating do not have the knowledge skills or abilities to effectively teach.