What type of jobs did people have in the Jamestown colony?

In 1607 the London Company sent 104 men in three ships to VA to establish a colony. They built a fort on swampy land and within 6 months most of the 104 were dead or sick. Most of the men who came were there to look for riches and gold. They didn't plant crops or prepare to survive the cold winters of VA. The men were a combination of military, outlaws, and gentlemen. Part of the problem was that no one did any jobs like planting crops or doing what they needed to live. Jamestown wasn't meant to be a colony established as a settlement in a new world, but make men rich. It wasn't until Rolfe introduced tobacco that the colony took off and grew.