So I figure I'll open this up for discussion.
With the new Bandai figure for Brock in his Red & Green pose coming in Japan, presumably as a start to the 20th anniversary, Ken Sugimori tweeted some of his original artwork for it
Now, some people noticed that the numbers beneath the Gym Leaders were offset by one, and Sugimori responded with posting another part of it, showcasing another trainer as being #1
So it appears that things could have turned out differently for us and that kid could have been the Viridian City Gym Leader.
Certainly interesting stuff