Though I came to know about Joe Stumpf after I was introduced to Brian Buffini's systems of working by referrals, I can simply say, working by referrals works for everyone.
I have been introduced to Joe's system in bits and pieces when I subscribed to some of the free training, I do realize it is more or less same as what Brian Buffini teaches us - to work by referral. Just a bit different approach in Joe's systems.
More about his program details in other review - soon.