The early Hartnell years were more like "The Ian & Barbara Show" with the Doctor as this enigmatic instigator.
Troughton started the tradition of the Doctor being more of the lead but it seemed like Jamie & Zoe usually felt themselves to be equal partners with the Doctor. While the Doctor may have had more technical expertise and could often connect the dots to explain what's going on, they all knew that they were all just winging it.
Peri was an amateur and was completely out of her depth in the bickering department. You'd need an A-level queen bitch like Tegan to keep up with the 6th Doctor!![]()
I find no fault in all the logic above, great job! Lol