"The harvest is plentiful, but the workers are few".  If you've been around Christian circles much, you've likely heard that verse many times.  Typically it's a call to be a worker.  It's a call to evangelize and tell the world about Jesus.  That's a good interpretation.  However, what does it mean to be a worker?  Are the workers just those that actually see someone give their life to Christ?  In harvesting, there are many steps before a crop is produced.  The same can be said of someone accepting Jesus.  There is a process.  Multiple people  may be involved with each level.