Have you tried not being able to fill in a job position in your tech agency by the time you needed it?

Hi! Asking this question as part of the validation for our startup idea.

This is a question for in-house recruiters in tech agencies, and I am aware that a lot of developers are involved in the hiring process in their tech agencies (ex: senior developer conducting the technical interview / CTO doing the screening, etc) that's why I'm asking this here.

Hoping to get responses for this, it'd be a really big help. Thank you!