The flight decks are not essentially different. The instrumentation on the Display units is synthesized to appear very nearly the same as the analog or self-contained digital units on the "classics" (as customized and configured by each operator).
The controls and switches are all in very nearly the same places and accomplish the same function from the pilots' perspective. The stabilizer pitch trim system used to have two actuators and a brake. The NG
has one actuator and no separate brake but there are still two switches on the control console and they are labeled the same.
The old style light controls had big knobs and used transformers for control . The new style that are performing the same function as the classic still have big knobs. The light controls for the Display Units are a smaller diameter and obvious to the pilot that they control something not common to the classics.
This was a design specification.
That way the pilots' may be qualified to fly the NG
aircraft with minimal differences training if they're already qualified on the classics.
One may educate the ignorance from the unknowing but stupid is forever. Boswell; ca: 1533