Given the current changes affecting sales, politics has played a role in the redesign of the 7 OWG. Many sellers view the restrictions on telemarketing as detrimental. However, a very positive aspect of this new sales situation is that the focus of work inevitably shifts to the development and evaluation of referrals. Referral management is the trump card that must be developed and utilized. A success-oriented referral management system is an ideal and highly effective management tool. Sales managers thus have a powerful means of control. Therefore, the authors aim to address fundamental ideas of management theories to broaden and deepen the foundational knowledge. Those who engage with these basics will gain a better understanding of the interconnections.