Systems thinking describes how systems are organised, unfold and change and how this should be managed. MBA programmes do the same regarding business organisations.
Systems thinking is (w)holistic. (Note: Wholistic
To make MBA programmes systemic would imply that the whole MBA curriculum is designed as a systemic and integrated action learning programme, based on a meta-systems paradigm (e.g. Biomatrix Systems Theory). This would imply that systems thinking is not a specific subject but is the meta-discipline within which all subject specific knowledge is contextualised and the interaction between subjects is organised.