When last we left our heroes – random adventure tables

I've been toying with the idea of a fantasy RPG campaign.  Part of the problem is my group(s) are fairly erratic, and getting a consistent group of players consistently is unlikely.  So, I have been thinking of ways to minimize the impact of that while still letting folks participate when they can.  So I think we'll set the group up as a loose group of adventurers who sometimes drift off