As TOS is to the late age of sail, ENT should be like the early age of discovery. At the same time, instead of a place of power Earth should be like late 19th century Japan, which is kind of what we get in ENT since Earth is presented as technologically unsophisticated.
Maybe this is a second change but going with the age of discovery/Japan idea, I would take Drexler’s idea of the Vulcans in First Contact saying “come see us when you are ready.” As in they don’t get involved with Earth until later and it’s at arms length.
The goal would be to create a planned journey for the ship so it hits all the surrounding capitals and establish the ground work for embassies, or check in on existing embassies. While at the home worlds, or other stops, negotiate for technological, scientific, entertainment and other exchange. That’s one of the weaknesses of ENT, Boomers should have been buying advanced technology to sell on Earth and the warp five engine should have been partially due to reverse engineering and due to engineers who studied on alien worlds. Even with over involved Vulcans it never made sense for Archer not to be establishing embassies and negotiating for technologies. The Vulcan reach ends on Warrh and doesn’t extend to Starfleet. Also, Phlox shouldn’t have been the only alien on Warth doing his job, Archer and other captains should have been actively recruiting aliens to teach on Earth while other humans go off to study on alien worlds.
