- itching for something new
- can't stick around because of personality clashes
- compensation
- not looking, but "looking"
Folks who're looking for something new will likely only stick around a couple years, because then "new" will be "old", and they'll want something "new" again
Personality clashes - whether their "fault" or not need to be seen early: doesn't make them [inherently] "good" or "bad" candidates, but since personality fit is >90% of every job ... you need to grok this fast
Money/perks/work-life balance/PTO/stock options/etc all matter to everyone - but how much they matter varies person to person
If they're content where they are, but are willing to talk to you, you know you have to work harder to get them - and it's probably not going to be by merely tossing a few $$KK at them
The way you (or any other candidate) answers, "why are you looking for a new position" indicates worlds about them as a candidate, and how well that particular recruiter is going to be able to place them into the company portfolio he/she works with