I've been with this company for 4 years and was just recently "promoted". It's really a lateral movement with a better title and more money. I do not feel I would be able to stay in this role for more than a year.
That being said I was just offered an opportunity where I do feel I would be able to learn and grow. I am wondering if it is unethical to resign so soon after receiving a promotion? Also, any tips on how to resign?