FedEx sales reps have always sold the company as one unit...
Sorry, this just is not true.
There was a salesman for Express, a salesman for Freight, and a salesman for Ground.
This was one of the points that we (UPS) would use with potential customers, the fact that they would deal with one driver and one sales person.
I think you may be mistaken. In the past, each operating company within FedEx Corporation maintained seperate sales teams (Express, Ground, Freight, etc.). This is changing. Sales is being "centralized" to "Services". In effect this means that the sales personnel are being absorbed by FedEx Corporation (the "Master" corporation).
The "gray" on the business card means a whole lot more than people outside of FedEx would realize. By being outside the individual Op-co's, they can "sell" to a single client whatever that client wants. This is part of the establishment of that illusion of a seamless company.....FedEx. It also eliminates duplication of effort by sales teams within each individual operating company. With a unified sales team taking a geographic instead of service level approach to client, FedEx trims sales force size and can provide customers with a "one-stop" contact for ALL FedEx business. No more having two or more sales reps for a client. One client, one sales rep, it is coming.
Since they are "grey" and not "Green" or "Orange" employees, they can cross Op-co boundaries and not cause issues for FedEX to maintain the RLA and IC models. All part of the "having one's cake and eating it too" philosophy of FedEx. There are more changes coming.