Who came out SWINGING with their debut album/movie/TV show and has never been able to recapture that glory ever since? In other words, who had beginner's luck and nothing else?

I was watching Euphoria Season 2 and while it was a lot of fun, it just wasn't able to capture the fun/drama/seriousness of the first season. Then, with Idol, it's obvious that Sam Levinson struck gold with the first season and now I'm questioning if he's actually talented or just got lucky.

Weirdly enough, Ryan Murphy and company do this with every first season of his shows. Feud, American Horror Story (the first 2 seasons), American Crime Story (OJ season). Obviously he has talent, but he needs to know when to pull the plug because he always overstays his welcome. However, he's not a great example of this trend, since he obviously can recapture his movie/TV magic when he jumps ship to a new show.