Another change I liked (although this may come from mostly watching TNG first) was that Crusher and La Forge were on the bridge less often than McCoy and Scotty had been and that the TNG crew used their conference room more often rather than having a lot of discussion or especially disagreement on the bridge, to me both increased the sense of professionalism.
Except TOS had PLENTY of 'conference room' scenes too (Kirk's famous "Risk is our business..." speech from TOS
Return to Tomorrow was done in the conference room setting. TOS though, did it when it was appropriate to the situation of a story. If the 1701 was in combat; or in a situation where it would be bad for Kirk/Spock/whomever to not be on the Bridge, discussions about possible decisions were held there.
As for Scotty being on the TOS Bridge - there was a physical Engineering station on the 1701 Bridge; so it wouldn't be illogical to see him there, even though the character prefered to sit in Main Engineering.
And, while McCoy didn't have a Bridge station, again, he usually came up if Kirk needed to speak to him (and it would be bad for Kirk to leave the Bridge); OR McCoy was called up because there was a Bridge officer injured, or injuries on the Bridge were a possibility, and they wanted Bones on hand just in case.
By contrast, the one TNG episode I recall where I thought they SHOULD have stayed on the Bridge was TNG's
Q-Who where, right after Guinan tells Picard, "That's a Borg ship....protect yourself"; and the Borg beam over a few scouts, lock a tractor beam and cut out a portion of the ship, Picard finally fires back and terminates the beam...what's the first thing he does? Take the ship out of there? No, he calls a "Conference" and ALL senior Bridge staff just walk off their stations into the conference room. My response watching it was: "WTF?!"
^^^
I doubt you'd have ever seen a scene like that on TOS.
Riker was another one. Season two's Peak Performance made it a point to illustrate how Riker used his 'joviality' to create loyalty and top performance from the crew. Picard stated that directly. Then, along comes season three, and Riker now seemed to possess little humor at all, and was now quite serious, with humor being the rare exception. He was now arguably as prone to grumpiness as Geordi now was. In retrospect, it makes me wonder why the big deal was made of his command style in Peak Performance, since it directly dovetailed into the opposite of it's own point.
William Riker was badly written from the start. We find out that the reason he initially ended his relationship with Deanna was because he wanted to make Captain before he turns 30 years old. Yet, throughout TNG's run, we find Riker has been/is offered promotion/starship command three times, and turned them all down:
In TNG's Season One episode
Arsenal of Freedom Riker himself confirms he was offered command of the U.S.S. Drake; but turned it down feeling it would be more advantageous to be First Officer on the 1701-D U.S.S. Enterprise.
In TNG's Second Season Episode
The Icarus Factor, Riker is offered command of the U.S.S. Ares (and hell Lt. Worf wants to go with him); but again, Riker turns down a command.
In TNG's Third Season
Best of Both Worlds he's offered the U.S.S. Melbourne and turns the command down again with hardly a thought - and only reconsiders when Picard orders him to, yet STILL in the end turns down a promotion when all is said and done - which is insane when you consider that they lost am LOT of experienced senior officers and Riker could probably make a real difference on another ship.
^^^
At that point that when anyone watching would come to the conclusion that Riker talks a LOT but does little - and honestly, I agreed with Captain Jellico's assessment of Riker in
Chain of Command when he tried to tell Jellico, he hadn't implemented Jellico's ordered shift rotation change because the department heads told Riker it would cause them problems. (Hell, even Picard looks embarrassed because if Riker had failed to follow such an order given by Picard, I'm sure Picard would have chewed him out too.)
