I know two people who were hired as an on-car / center manager straight from preload. Both had a combined total of 5 months on the job. One quit a month into it to continue nursing school. The other B* got her ass transferred to Colorado to be a FT dispatch supe.
Not anymore do FT sups have to have delivery experience to be promoted. In fact I believe it is very rare anymore. I have personally seen PT Hub sups go straight into FT Feeder sup jobs.Yes. They still have to drive 30 days to "qualify", hence the term 30 day wonders.