With Ohtani showing it's doable and McKay showing it's possible. The door is opening and other teams are going to want one or two.
If Front Office personnel, Managers or coaches think it can only be done by someone special like Ohtani. They will probably be the type of person who also didn't think a Microwave could cook food. If after watching the microwave cook food, if they still are of the opinion that it must be a special microwave. They will be Dinosaurs to be replaced as the game advances past them.
The game will shift and these type of players will increase and those who refuse to believe it will be out of baseball.Don't know how long this will take but it will happen.
I believe that players who can both hit and pitch have always been around. They were just never given the chance to do it because teams would force them to specialize in one thing.
Of course... I am the President of the "Baseball Player Positional Flexibility Club"
A Skeleton walks into a bar and says... "Give me a beer... And a mop".
President of the "Baseball Player Positional Flexibility" Club
Strike Zone Automation Advocate