The fascinating thing about those credits is who is credited. Lead actor. Executive story consultant. Music by. In that order. No other actors (ensemble casts? pah!), no director, no actual episode writer. The (sole) producer is there right at the end as an afterthought. When was the last time you saw credits like that? But basically the series was being sold on Wyngard and Spooner, and anyone else was irrelevant.
You just don’t see that any more. Compare it with something relatively modern:
Actor, actor, actor, actor, actor, actor, actor, casting by (??), casting consultant (???) (people really important I’m sure, but they’re not selling the show to me on those names), production designer, editor, director, TWO composers, FIVE producers, and Sorkin (surely the show’s actual selling point?) is buried right at the end of all that lot.
But anyway, back on topic: if MM’s next project is based on 60s TV drama, here’s my money