[Traster]

If someone has a good idea, you don't want the idea, you want the person. If you take the idea, at best you'll split the market with the person who had the idea. At worst they'll iterate and you'll get nothing. Far better to find people who have the skills to develop an idea.

Having said that you also want to find the (vastly more in number) people who can take someone else's idea and actually implement it.