This comes from never quite rising above its origins as a children's show and never (during its original run anyway) getting a repectable budget to realize any decent sci-fi concepts. It's a show that, for pretty much its entire run, rises & falls on the charisma of its lead actor. And the fact is that Tom Baker has more charisma in his little finger than Peter Davison, Colin Baker, & Sylvester McCoy put together.
Honestly, if I were the BBC at the time, I would have made Tom Baker a producer and seen what happened.
Honestly, I wouldn't. I would have given Tom his own Variety Show to star Tom Baker as Tom Baker. That's essentially what he wanted, anyway. If I had been in charge of the BBC, I would have given Tom two extra years as The Doctor, to give everyone time to create a proper season-long finale for the 4th Doctor. Then, on the 20th Anniversary movie called "The Five Doctors", I would have Tom bow out to regen into Peter Davison (who by that point should be the age he said he was most comfortable playing the character), give Peter whatever outfit he really wanted, and upped the budget to the most spent on a BBC production of the era. I'd get overseas co-funding to help if necessary, and the new era of Doctor Who would begin.
Peter would have four years (ending in '87), Colin would get five years (ending in '92), and then I would diverge and, as much as I love Sylvester, I'd throw gobs of money at Rowan Atkinson to be The 7th Doctor. He would have the role until 1996, when Paul McGann would be cast as the 8th Doctor. He would go for eight years, and then...2004, I'd call up a man named Stephen Moffat and see if he wanted to take over the show....with the contractual obligation to hire Christopher Eccleston for a three-year contract...
