a) What you truly enjoy doing: your “passion”.
b) Your natural talents/skills: where you are most proficient AND what you most enjoy doing.
c) Money – the income that provides what you need and ultimately, what you want. Know Your Number!
d) Growth opportunity – professional development, market growth, etc.
(It is not unusual to hit the cement ceiling along many career paths – when we are unable to go any further because the opportunity for growth, in the job role/position or sector, is just not there)