One of the main reasons for a pro in the lane is expense vs. revenue. A professional advisor, if his pay plan is correctly structured, will generate his own pay plus a profit for the shop. An order taker,probably hourly, will do only the minimum to keep his job and will become an expense for the shop.
If you have any doubt, calculate the expense generated in customer goodwill(rental cars and refunds to angry customers) and in unpaid warranty claims generated by a rooky!
That alone, not counting poor labor sales missed by the rooky, is a reason to hire a well trained pro.
In my opinion, the order taker is an excuse for a lazy Dealer or Service manager that does not want to have to really manage a service department. It is hard work and it takes organization and intelligence to make all the systems in place work smoothly.
Most dealers do not have a clue as to how service works or what to do to "fix it when it's broke" ---- and they have little interest in learning. They look to their service manager to make it work -- as long as it doesn't cost anything.
John
Ser Sol
Pika68@aol.com