C.E. Evans wrote:
One way to easily reconcile it was already mentioned earlier in this thread--an idea that the Enterprise's refit started off originally as just an engine upgrade and that it ballooned into a total redesign of the vessel.
This one's been around for years, but it's an impossible upgrade if you look at both designs one over the other.
Not at all. Shane's Johnson's now out-of-print Mr. Scott's Guide to the Enterprise
came up with a very good idea of how the incorporation of new systems led to compatibility problems that required changes in the ship's design to accommodate them. It's definitely plausible that after awhile, a decision was made to redesign the entire vessel. Basically, making it a refit that spiraled out of control.