Good catch about the non-native thing! I felt the same as soon as I read first two lines of his post. Anyway, in my experience there are only two guaranteed paths to break in to "Executive Management":
1) You need to bring in a client who contributes big revenue $ to your company or division's bottom line. Or,
2) Develop the next big rain-maker product or service.
MBA can help you become a manager, associate, or AVP but that's about it.