Excellent article! I can't disagree with anything.
The first 8 seasons are it's most entertaining and aside from Jamie miscast, things were good. An interesting point about Donna Reed coming in as another character. Certainly they could have found a Southworth cousin to fill the void while Ellie was away, but they likely felt BBG was not interested in returning.
I can enjoy the show all they up through Pam's exit. I'm struggling to watch 11. I won't likely won't bother with the rest.
If Donna Reed had been cast as another character, then would Howard Keel be written out?
Presumably, that character would have less authority over SF, since Miss Ellie owned it.
How would this effect her relationships with JR and Bobbie?
I suppose that it could have been done, but there would have been some
practical/logical things to be addressed.
Seasons 11 and 12 had their moments, but 13 and 14 were horrible.
You are correct, the first 8 seasons were great.