Josh did not come up through P&R. He held other exec positions then was given VP role at DAK to get more exposure, then he moved up in the parks and resorts division.
Granted he didn't start in a front-line role, but the bulk of his early career was still in WDP&R in Sales & Travel trade marketing, then a brief tenure in DCP before heading back to WDP&R at Adventures By Disney and eventually DAK.