Jigsaw Villagers spawn with professions

So if a villager spawns naturally with a village lets say next to a cartographers house with a cartography table. They'll become a cartographer no problem right? Not really... it might take time due to schedules and overall their detection for finding a workplace as they might be occupied with other tasks. I think to speed up this process the villager that spawns with the cartographer house should automatically be a random trade cartographer.