Sorry Charlie, but you (MBA's) have lost control of your own branding. Consider dumping the title Master's of Business Administration and go with Organizational Economics or something.
I don't know how to tell you to get your street cred back, but you'd better start excluding the riff-raff somehow.
I don't know how to tell you to get your street cred back, but you'd better start excluding the riff-raff somehow.