With my last fortress (glass) i embarked with this:
5/5 miner/glassmaker x 5
5/5 woodcutter/glasmaker
5/5 grower/brewer.
Drop anvil, about 10 or so seeds for each type, about 50 drinks, 1 axe, 7 picks, 1 of each low cost meat, some thread, some bags and almost 300 wooden logs.
Farmer makes some needed wooden stuff, one of my miners makes some needed stone stuff, and thats about it. Past halfway of the second year now, didn't make use of their glassmaking skills yet. Priority was setting up all the needed workshops and such, fastly getting legendary in mining/woodcutting/growing, setting up a big bag economy, making wealth for trade and training useless immigrants into novice glassmakers. I'm about ready to start making green glass and clear glass on an industrial level now. Have about 35 immigrants atm (capped at 100) ,expected to fastly make about 300 bags before the year is over, have about 15 glassfurnaces on repeat collect sand and currently 12 magma furnaces wich will come into full swing churning out glass by the buckets, expected to make 3000 green glass blocks and 1000 clear glass( for portals and such) in a year. (clear glass is ofcourse is ofcourse limited by the amount of wood available, thus this number will drop significantly for the next year, while green glass will likely skyrocket)
So, i would say that everything depends on how you play.