Greetings Papa Deuce,
Best thing is to attack the issue straightforwardly with your client since you know in advance that someone is going to pick that up. Ask what is the level of interaction she feels that this person needs with you(given your level of services)and go from there.
Ask to meet with both the bride and WC in advance, you can assess levels of professionalism then, and assess how much you will need to carry. Often, they are friends of the family, not professionals, and will be glad to take advice from an experienced hand, others are professional with their own companies, and actually can be quiet good.(rare, but it happens
Solve the problem in advance before it becomes a problem.
I've been surprised often with a wedding coordinator showing up and introducing themselves without any advance warning.
They are very useful for ceremonies and I think often get hired because the bride in question gets panicked and overwhelmed and wants someone else to deal with a lot of detail. I have learned not to feel offended because of this development, because I, like many of us here, do really good detailed work for weddings. But we don't handle everything, like lighting table candles, straigtening lapels, pinning flowers or bustling trains etc
In those situations where I've been surprised, I've reacted by shaking their hands, and thanking them for being a part of the brides day and show them the itinerary that has previously been prepared by the bride and me, and indicate that "this is what "WE" have planned out" , and see if the coordinator has any instructions from the bride to change things. Verify that quietly if possible, but in your case, if you include her in on the planning sessions, then there will be no surprises and should run smoothly. .
Then I ask them if they'd mind helping me out by corraling and lining up the wedding party for introductions, and were thrilled, and occasionally they will come over to "let me know" what the next thing is....and I ask them to make sure that for example, if the toasts are ready to be made, to ask them to locate the toasters so that I can announce them.
It makes sense to simply back off, and make them "buy In' that you need help, and give them tasks that you might otherwise do unaided.
in one case, The wedding coordinator wanted to be held responsible for everything. So...when the times came due on our duelly planned planner, I would go over to her table where she was sitting with her husband, eating, and inform her that it was time to get the bride and groom for her cake cutting , 5 people for toasts, and bouquet and garter....and she would have to get up and go get them. She never got to finish that meal. Oh well, that's what she asked for. I did exactly as she wanted.
She ended the night by remarking how difficult my job was, and marvelled at how I was able to hold it together at events where I didnt have someone to help.
Frankly, they can be a great help if you can get them to think you really need help.
Rather than butt heads, roll with it unless you feel that they are ruining things
I have this problem less and less now that my wife is hired with me when we do ceremony and receptions.
I hope this helped.
I have yet to have one at a wedding I am DJing, but one of my clients said she may use one for her 2011 wedding.
So, if she hires one, does that mean I have to do what the WC wants to do, when she wants to do it? Is it my job to contact the WC to get details about what is supposed to happen, or should the WC be calling me in advance?
I know we see lots of threads slamming these folks, but assuming they are, and act like professionals, what is the proper protocol?