It was said in comic terms that teams should only be 'so' big. Cuz if you have 7 characters on page in one room, all 7 have to be in the next room and the next room and the next room as they move thru them. Imagine having 100s of chars running around! There's a point where you stop caring as Blowtorch was saying. It's far more interesting to take a small group and work them thru a story rather than having 100s just showing up putting their 2 cents in. To a degree, you want to see what happens next, as SelfMod says, but at the same time, if you are constantly changing chars, it won't matter what happens next.

In other words, don't use Robert Jordan as an influence. He shows what NOT to do and his work is suffering for it. lol.