Aevy is not a good fit for all companies.
Here are some possible reasons why you might want to look elsewhere.
You don't care about the candidates' quality
Aevy works well for positions that are difficult to fill, or situations where you're looking for a truly skilled candidate. If you're just looking to fill a seat, a regular job ad might be a better option.
You're expecting the candidate to pitch
The candidates you find through Aevy are often already employed. It's up to you to convince the candidates why they should switch.