Can we get Jump Potions for our Retainers?

[ErryK]

Different roles bring you different items. To be able to just switch a retainer from lv 70 DoM/DOW to lv 70 Miner or from lv 70 Miner to lv 70 Botanist would be a bit OP.

OP in what sense? You'd still need to get said jobs to 70 yourself.