The short answer: It depends.
The long answer: It depends on a lot of things but the biggest qualifiers are what and where the job is.
If the job is one in which there is a plentiful supply of talent in the local market (relocation still being a big issue in recruiting today — most of my customers prefer not to do it!) and the job itself is one in which there is a healthy employee turnover rate (four to five years), usually between 35 and 50 telephone sourced names will effect one immediate hire.
Why do I put those words in italics?
I say usually because there is no magic bullet in recruiting, and several factors play into this formula: keep reading…