We have 30 or so "house accounts" that I've assigned to me, the system administrator. We want all of our sales people to see these accounts, write notes, etc. 

When I set these up originally, I shared them from System Adminstrator to Sales Engineer with Read/Write/Delete access and it worked for a while. (See attached screen capture.) Now nobody except me can see them. 

I don't want to make the default for accounts to be "Public" as that will give everyone visibility to everything. 

What am I doing wrong?

Thank you!

John Galich