Staples is a crappy company and this (temporary) situation with the SDOs is just an attempt by execs to cover their screwup. As soon as they find a way to make semi-reliable deliveries via a 3rd party they will close out the re-opened SDOs.
There is no reason to go back to them, unless you enjoy being ravaged n the rear end with no lube.
The execs know the company is dying, it is all about a controlled crash while the execs keep making as much money as they can at the expense of the average employee.