I've always liked that set but I can't understand why they had to get rid of the history of the enterprises. I thought it was a nice touch and bridged the gap between the TOS ship and the other enterprises. I always loved that you could see the TOS movie Enterprise and even the C and over time we got to see the C and even the Enterpise B in the movie generations.
So why change it I'm assuming it was removed at the season 5 I've seen it in season 4 .
So why change it I'm assuming it was removed at the season 5 I've seen it in season 4 .


Some of them are easy (engineering and the transporter room are practically unchanged), others a little tricker (as you say, only one background wall gives away that the President's office is actually Ten Forward).