How can we find right people for winning team?

Some of my friends, hired some great persons for the business and winning.
Same time, some of others loosing their time and wealth because of their people.
I belive they didn't find right people.

Even, Mr Welch saying on his book "Winning",
"Hiring good people is hard & Hiring great people is brutally hard"

So, how can we find right people for a winning team?

Let me share some tips from the Winning on later articles.