It would be interesting to see stats on the composition of groups that YC has funded since inception; ie, percentage of all programmer groups vs programmer/biz guy vs all biz guys, etc. Any insights PG?
The optimal configuration is one or two programmers plus one person who can sell really well. Best of all is when the person who can sell is also a programmer.
Given the number of people that post about looking for a cofounder here, I'm just guessing that a lot of people don't have one, but feel that they've got a good enough idea to make a business. Some of them really will have what it takes; but I'm sure the proportion of single founders that apply is quite different that the proportion of single founders that are accepted.