CNY2010,
is your son in high school or college and if the latter, what year, junior or senior.
In order to be drafted, either the MLB scouting bureau or one of the teams needs to submit the player's name so he is assigned a number for the draft.
The norm is that submission is preceded by the player filling out some type of information for the scout.
It is conceivable a college senior sign could be drafted if the college coach has provided all needed information so the player's name and information can be submitted and a draft number assigned. I would think a college coach who has a relationship with the scouts he is talking with can figure out if this has happened.
I am familiar with players who had no contact with a MLB club being drafted by that club, but they had always been contacted by scouts from other teams or the Bureau.
My experience is limited but every player we know who was drafted, even in rounds 30-50 had filled out cards and/or information sheets for scouts and talked with some scouts when they came to see them play.
Could there be exceptions? I imagine, but if a player has no contact with a scout, would have some questions the level of interest.
If your son is a college senior, there could be another possibility to consider from the type of interest he is attracting. If he is not drafted, he can be signed as a free agent once teams determine their needs and how their signing of drafted players evolves.
It isn't a bad situation because if more than one team wants the free agent, he actually has a bit of bargaining power, not too much, but some.