Hey @kali  - 

Understood!

So for this, something easy you can do is change the write ACL(s) for the HR Case Table.

I just did this to be sure, and it worked for me when I impersonated a regular employee having only the internal role.

And here is a case that is active:

Give this a try and see if this works as you need it to.

Keep me posted!

Cheers,

-Rob