The amount of capital required to replace the contractors (managers), drivers, trucks, scanners, safety tech. and all other items makes this pretty much impossible. the current FedEx fleet is made up of predominantly sprinters and p500s which in no way could remotely handle the influx of volume.
Thats not even to include the new liabilities that are incurred with doing that.
my smallish building would require around 100 p1000s and 25 sprinters which is currently sitting somewhere north of a 7mil investment for a building that does just about 1 mill packages per year.
your manager is either on drugs or some extreme levels of copium.