Who most likely are the listeners?

Hi, everyone, let’s begin the weekly call-center staff meeting. First of all, I wanted to let you know that I’ve just hired two additional customer service representatives to help out on the phones. Yes, I know that’s not enough. But there isn’t much can do with our budget. Anyway, their first day is next Monday, but before they start, it’s important that we revise our training manual. I’m going to assign a section to each one of you. Please go through your section, and if you see anything that has to be corrected, please send me an e-mail with the page number and your comments. I’ll review all your suggestions and make a final draft.
89.Who most likely are the listeners?
90.What does the speaker mean when she says, “Yes, I know that’s not enough"?
91.What task does the speaker assign to the listeners?