[kevkrom]

Insiders say it would be like replacing an idiot with an imbecile.

Drop the word "like" and this statement reads much more accurately.

[Red Badger]

Classification system (not used now) that used
such terms as moron (IQ of 51–70), imbecile (26–50), and idiot (0–25)...........

You are correct! It would be an improvement!.......