Good question - ask them.

I’ve had exceptional coders who were able and willing to make valuable contributions to the codebase, but needed to spoonfed the requirements. Maybe success in your team is a sense of ownership, in which case that person may not be right for your team - and that’s ok. Just don’t try shoehorning them into something they don’t want to do and expect successful results.

Frequently? Being left alone in peace.

A ton of people want a calm, quiet, peaceful workplace with not a lot of pressure.

New challenges? Opportunities to make a positive impact? Mentorship and management experience? Increased autonomy or flexibility?

Some people want to work just enough to make money to support their other hobbies. Earning 3 times the money for twice the amount of responsibility is not worth it for them.

I'm taking my pay raises in yearly extra vacation days for example.

same pay for less responsibility? a sense of doing important work?

Free time