> those who are competent and eager enough

That's one way to put it!

It's obviously none of my business, but I can't help but be curious whether you are currently responsible for hiring decisions, and if so whether or not you use take home assignments, and finally if so whether or not it is paid for. Or perhaps as an employee the process worked out for you. In either case, more details documenting how take home assignments work best in practice would always be appreciated!

A take home assignment beats many alternatives, but places the entire burden on the potential employee (employers love it!).