In fact , two of McCall 's colleagues , Michael M. Lombardo and Robert W. Eichinger , published data from one CCL study in their 1996 book The Career Architect Development Planner .
The 70 : 20 : 10 model has become widely accepted .
Two of McCall 's colleagues , Michael M. Lombardo and Robert W. Eichinger , published data from one CCL study in their 1996 book The Career Architect Development Planner .
The 70 : 20 : 10 model has become widely accepted .