and also things like
Regular sessions each week vs fluctuating sessions ( latter more like locums)
What career model suits each individual at that particular time in their life is key to whether their job satisfaction and engagement with their PDP etc remains high.
The term portfolio career has become widely know but hybrid career is a term less used and they may seem similar at first glance.
A typical portfolio career might involve four sessions a week traditional general practice, two sessions a week in a private sports clinic, two session a week teaching at a medical school and one session writing some training materials.
A hybrid career might involve half the week as a surgeon and half the week in a commercial bioengineering setting. Or half the week as a GP and half as a Health Board adviser. Admittedly there are not that many surgeons working less than full time but there ARE some!