The Application Process

My profile goes something like this - almost 9 years WE( little old!),have worked in two functional domain - Supply chain(5 Yrs) and Investment Banking( still working, 4+) as IT consultant/project manager, posses strong functional knowledge in both.
In long run I want to be an entrepreneur( common story) - two question
1) To be an entreprenuer, what kind on work exp align with the goal ( to me any job any domain aligns, true?)?
2) In short term post-MBA what kind of sector I should be focusing on for my job to gain more experience?

Thanks in advance for your inputs.