I have a degree in computer sciences and for several years I’ve been managing an IT department in a small company. I can’t really see much future in my role and am wondering whether an MBA might open up more management roles or start-up opportunities where I have more freedom. However, some colleagues tell me MBAs are an outdated concept and I should rely on my hands-on experience instead to get a job in a bigger company. Are MBAs really a waste of time?