FedEx2000 might have it right about the introduction of 2-3 day service at Ground. Problem is that if it costs less than Express then it will cannibalize Express. Ground can do limited overnight. What if they can get it anywhere in 3 days? Why would anyone use Express for that service if it's much less at Ground?
The one reason it would possibly be Express pickup/Ground deliver is that they can charge Express prices while eliminating Express overtime. That's a pretty good reason for the company to try to make it work.
You missed the point on cannibalization from Express.
FedEx Corporation doesn't give a damn how a package is moved. What they care about is margin per piece moved.
Ground is already offering "overnight" delivery within areas (about 250-400 miles between drop off point and delivery point). FedEx is actively advertising this and it is indeed canibalizing volume from Express.
It costs customers about one-third as much to move a typical piece by Ground as opposed to Express (taking in a macro approach to costing, excluding overnight). Let's use $21 to move a typical package by Express and $7 to move a typical package by Ground.
If FedEx Corporation can make the same net profit on that package movement regardless of service utilzed (let's use $0.50 as the final profit), then whether a customer chooses to use one service or another is irrelevant. In this case FedEx Corporation has costs of $20.50 to move a typical package by Express and $6.50 to move a package by Ground. The final margin in the pocket of FedEx is the same $0.50.
The whole point of shifting delivery of Express volume over to ground (besides the initial reaction to a possible unionized Express), is to increase that final net profit per piece for FedEx Corporation. The final net profit per piece within Express is actually LESS than Ground is now - thus the deliberate shifting of focus from Express to Ground for customers. FedEx Sales right now barely "sells" Express, they are selling Ground.
The Ground operators can comment on this, but I don't believe that Ground drivers have any sort of sales lead programs like Express does. First of all since they are contractors, but mainly because FedEx sales does all the selling for Ground; whereas they try to get Express Couriers to get as many sales leads as possible (since they don't have the time to chase down all the potential small volume, high margin shippers).
Put simply, FedEx Corporation stands to make a greater final profit on a given package if it is shipped Ground opposed to Express non-overnight service. If a non-overnight package is shipped by Express rather by Ground, FedEx can still get some of the cost advantages of Ground (increasing final margin to FedEx Corp) by shifting final delivery of non-overnight to Ground. Its all about chasing margin.
If FedEx Corporation can offer customers a variety of service levels (time to get to destination), offer those services levels simultaneously (as is done at both Office and Express stations now) AND can garner the same amount of final net profit regardless of how that package is moved, then FedEx doesn't care one whiff how a customer chooses to ship their volume. If FedEx gets the same end profit and can offer customers a cheaper alternative when they don't need overnight (or even 2nd day service), FedEx is jumping all over that.
As to Express overtime, they aren't looking to eliminate overtime, they are looking at eliminating fulltime Couriers. Part-time Couriers don't work long enough to get overtime - problem solved for FedEx.
Everyone needs to stop looking at this as an "Express" or "Ground" issue. They are both run by the same holding corporation and as long as any cannibalization occurs without any loss of final margin for the holding corporation (Ground cannibalizing Express), then all is well from FedEx Corporation's standpoint. If FedEx gets $0.50 in its pocket regardless of how a non-overnight package is moved, then what the customer chooses isn't a concern (Fred gets his in the end). The concern for FedEx is that the customer chooses FedEx instead of UPS or USPS.
What is not "all is well" is what is happening to those who have chosen to make Express a career and are being deliberately, slowly and without corporate admission, tossed under the bus and in the future forced to choose between either leaving "short" of a planned career or choosing to work part-time as a career.
FedEx knows that making such a public admission would cause turmoil within Express and possibly lead to rapid unionization with Express. Thus why all of this is being kept from the eyes and ears of Express wage and most non executive salaried employees. You don't make an announcement that even the idiots would recognize as being the death knell for their career hopes - and not expect bad things to happen.