Excellent question! I don't have a manual, but I am adament that service has to be done my way. At one wedding, I directed the staff to pour the champagne on the right side of the guest with their right hand and without picking up the glass- too time consuming and I don't like it done like that. Period. Watched a new kid picking up the glass, pouring the champ, and placing the glass back on the table. As soon as I could get his attention without getting the attention of the guests, I reminded him how I wanted done. He said, "this is how I like to do it". Really? I hissed at him to do it my way or get in his car and go home.
Same kid, same wedding- I opened a cambro to find that someone hadn't packed the pasta salad. It was time to set up the buffet, we were 15 minutes away from the kitchen, and I was PO'd! Admittedly, I was upset and was probably looking very stressed. I told one of the adults to get in the van and drive like the wind. This kid came up to me, put his hands on my shoulders, and said, "You need to relax. It's not that big of a deal." I told him to get his hands off me, and to stay out of my sight for the rest of the night. Seriously, I wanted to stuff him in the cambro. He never worked for me again.
A manual is a good idea if you have time to create one.