Give a guy who knows what he's doing the right jobs and he'll get more done for your village than a guy with 'skills/stats' can in 10x the time.
Lumber, tanning, smelting (minus mining), digging resources, paving, grassing, building.
Lumber? A proper setup can haul in 400 logs a day no problem lickity split just need the wine for it, and with a courier alt (4 days of setup[shew], can do it in 2 if you use straw dolls or something instead) it's even faster/easier, and wine-free.
Tanning? Anyone can do it, and the leather is very welcome I'm sure to any newer village, getting everyone equipped with t-sacks and then later on with HQ leather, requires no skills on the part of the character, only time and will.
Smelting? Just need to know what you're doing and have good infrastructure, perfect job for someone on an alt.
Digging resources? No need for anything besides vand (if stolen), or nothing if belonging to you.
Paving, grassing, alt stuff.
Building? Cheese racks, cupboards, houses, troughs, there are a lot of things that need to be made in bulk, they can be doing these things.
Milking cows? Another very easy job, pretty much everything cheese can be done by a character a few hours old or so in a new village.
--
Honestly if you have a proper infrastructure and nice resources (foraging) you can expect new guys to be up to speed fairly quickly.