Fungo,
I had your son in mind when I posted this article.
My son has been asked this very question since last fall. He pitches & plays a mean 3rd, lead his HS team in BA, rbi's, dble, hr's etc, this HS season as a junior. District MVP & All Region awards...
Pitching wound up 9-2-1, 124K's in 74 IP, .828 ERA.
So, he feels like he's reaching a point where he will be forced to decide. He's learning that some recruiters see him one way, others see him another. Very few are open to 2-way players. Scouts seem to ask him the same question. Then just nod when he says he doesn't really know...He just wants to play, will do what is neccessary to contribute.
He's of a mind to let others decide, as that seems to satisfy.... And really, he doesn't want to choose....But, I wonder if remaining neutral is really best.