So in what way are you supposed to coach them?
Are you going to teach them them how to sell things to people?
Show them the methods for over coming objections, the rule of threes for getting an idea across, how to learn what a guest truly needs as opposed to what they think they need, and how to upsell.
Or are you just going to ding them?
Because the fact is that sales is an art not just something that you can throw someone out on the floor and tell them to do.
You don't expect someone who has just got their first job or who basically hates people to be good at it right off the bat.
That is bullshit.
You have to give them the tools.
Teach them about the product and why the clients will be needing it.
How to manage expectations and how to produce results.
If someone walks in, needs something and you can hand them the product, that is not sales.
Sales is when a mom walks in and says, "My daughter is having a hard time reading. What book should I get her?"
You have to know what questions to ask, how old is your daughter, what does she like, what has she read lately, why doesn't she like to read?
You also have to judge other things, what is the mom wearing, how does she come across.
Can you offer something a little older and romantic that might catch the girls attention (which is why a lot of them stop reading) or do you want to avoid that cause mom won't accept it?
Then you had better have some good ideas based on those questions.
If those ideas don't work you'd best have some plan B's.
That's just books.
Now apply that to every product from phones to towels.