Were you a manager?
Will you be a manager?
Have you spoken to the company's immigration lawyer.
You should have answered all 3 questions with yes.
PROFESSOR OF IMMIGRATION LAW for over 10 years -- This blog posting is offered for informational purposes only. It does not constitute an attorney-client relationship. Also, keep in mind that this is an INTERNET BLOG. You should not rely on anything you read here to make decisions which impact on your life. Meet with an attorney, via Skype, or in person, to obtain competent personal and professional guidance.
It appears that you are eligible again for an L visa since you have worked for the overseas company for at least one year within the past three years.