I'm not sure that taking over RPS and turning it into FedEx Ground was the best of ideas... nor has it been managed in the best of ways.
Having people who deliver the packages being independent contractors is not ideal. But it is what it is. But, to be able to fully compete with UPS, something had to be done.
I will say though, in my years of running a warehouse for a software company... NO ONE was better at international shipping than FedEx.
I had a cousin get his CDL and he was running a team driver route for FedEx between Illinois and California. Basically. the truck rarely ever stopped... mainly it only stopped to swap drivers and to fuel up. One guy was driving while the other guy was sleeping. Some of the things he saw. But, he could only take about three years of it before he gave it up. The mental and physical burnout of doing that has to be high.