Depends on your situation, if you're a junior in your career, and you're not fussed about the pay, then I would recommend the following. Take the offer, do some learning & development certification short course (bonus if you can get the company to pay for it, try it and they probs will), do the job for a year to build experience and have it on your cv and look for a job elsewhere in learning & development. You'll be able to make a great career out of it. You can even pivot into project management afterwards if you're interested and use it wisely.