Why didn't the Founding Fathers anticipate political parties?

The FF were BRILLIANT on the whole, so it's always flummoxed me that they never foresaw political parties. They assumed men who disagreed would be able to coexist and co-govern the country. The election of 1796 quickly put that notion to bed, and a Constitutional amendment fixed this problem. But WHY create the problem in the first place?

I would say for pretty much the same reason anybody doesn't anticipate anything -- the future's hard. Political parties as we understand them didn't exist anywhere at the time, and they had no reason to predict that the world would work out the way it did.

Thanks Rube! They were brilliant NOT clairvoyant.