During the Area Code games the pro scouts named the players who traveled to many showcases - "showcase gypsies"!
They had no opportunity to learn the game! "You play to learn"!
When they enter college or pro baseball then the "sticker" shock arrives.
Minor League managers often would remark "who scouted this kid". College Coaches will question their Assistant Coaches.
When I coached a Summer team, I would invite pro scouts to provide a clinic both on the field and off the field. Questions to ask College Coaches. If a player left the team for a showcase, a summer vacation, a senior trip, he had no uniform when he returned.
Bob
PS: our Northern California Summer League included 43 future MLB players in a 5 year term.