I know the first letter of the sought after management model:

 
 
hawthorne effect
Mayo, Elton
  • period: 1933
  • country: United States
  • role: change agent, consultant and manager
  • activity: analyse and reflect
  • topic: change management, culture & internationalisation and org. design & development
 
hawthorne effect - sample model
Mayo, Elton
  • period: 1933
  • country: United States
  • role: change agent
  • activity: analyse and reflect
  • topic: change management
 
hierarchy of human needs
Maslow, Abraham H.
  • period: 1954
  • country: United States
  • role: change agent, coach, manager and trainer
  • activity: analyse, design and reflect
  • topic: leadership & management, marketing & sales and personnel management