I'm not really sure how much a highly professional teacher can help in your average Thai school. I don't know how a highly professional teacher would find themselves working intimately within a school here considering how much they'd cost to hire. Even as a hypothetical it doesn't seem to be in any way plausible.
I'm a fully qualified teacher from the UK. I've done my extra studies and qualifications, but I don't know how much I could bring to the table here when it comes to your average Thai schools.
I first came to Thailand when I'd just finished university. I didn't have any money so decided on a working holiday teaching English. I had a friend from home who got me a job at a private school in Bangkok. My plan was to only teach a year then go home. I did nearly two years and decided I'd like to further my career in teaching and live in Thailand. During my time teaching at this private school I'd teach on average 18-22 periods a week. I taught class sizes that ranged from 35-50. I taught in hot classrooms with old air cons. I taught students of all levels and backgrounds. It was hard work but highly enjoyable.
I went back home and did my PGCE. I started as an assistant and then began teaching formally. I taught back in Liverpool for three years and decided my CV was now strong enough to get myself a good job at an international school in Thailand. I applied early and had a few offers after quite a few interviews. I decided on the job that offered me the best money and the best benefits.
I've now been at the same international school for four years. I have some very qualified and very competent bosses. I teach class sizes of around 16-22 kids. The school seems to have a bottomless pit of money when it comes to resources. I ask for something and I get it. An air con breaks? I'm moved to another class. My students are awesome. Smart, diligent, hard-working, well-behaved.......I could go on. Everything I was taught after university is geared pretty much towards my teaching environment now. My bosses' knowledge is pretty much perfectly geared towards the environment we are in now.
If my old Thai school called me, offered me a job as academic manager with a better salary and better benefits than now, I'd absolutely say no. I'd be honest and say there's nothing I can do for you. I'm not qualified. I don't really know anyone who is. Offer the job to one of the teachers there who does their job well and has lots of experience. They're far more qualified than me in this context. It would be pointless paying me a ton of cash to have my hands tied by budget restraints etc. You need experience from someone from or in this environment.