SAF - Aberdeen
Mourinho - Porto, first club Benfica
Pep - Barcelona
Zidane - Real Madrid
Klopp - Dortmund, first club Mainze
LVG - Ajax (golden generation)
Cruijff - Ajax
Ancelotti - Milan, first club Reggiana
Wenger - Monaco, first club Nancy
Hitzfeld - Grasshopper first club Zug
Capello - Milan
These managers can't be categorized under age or tenure. Some of them worked their way up from nothing, getting noticed by how well they were doing. A few of them started with a pool of players that would be the envy of the world to manage and got the job through nepotism rather than merit. Would Koeman get a sniff at the Barcelona job if not for his legacy as a player there? Ole at United?
These days it's even harder to win a title because money has become such a big divider. Chelsea was thought of like a big underdog when they won the CL in 2012. Chelsea, one of the most expensive squads in the world with Cech, Terry, Cole, Lampard, Essien, Drogba etc. Is that your Cinderella story winner? No. Besides Mourinho there hasn't been a Cinderella story winner in the CL since the dawn of billionaire owners. It's all massive clubs that win it. Leagues are similar. Ranieri with Leicester, Klopp with Dortmund and arguably Liverpool, Simeone with Atlético and Jardim with Monaco are the only "upsets" in the past 10 years in the 5 biggest leagues in football. At most 6 out of 50 league titles and even then Klopp won before Bayern became the dominant force they are today with the 2nd biggest club in Germany. Simeone won with the 3rd biggest club in Spain and Jardim's Monaco team was hardly cheap.
Most of OPs examples are managers from the 90's but football is different now. PSG have won 7 of the last 8 titles. Juventus 9 in a row. Bayern the last 8. Real and Barce 9 of the last 10. Plenty of different managers in there, it hardly matters. These clubs are going to win.
Premier League is the unique league here with 5 different winners in the past 10 years or 4 different winners after SAF retired. 5 is as many winners as have won the Primeira Liga (Portugal) in its entire history (2 clubs with a single win). The answer to why is the same as why the other leagues have fewer winners. Money. There's more of it in England. The teams in 2nd tier in England are so rich that they can realistically mount a title challenge because there's a lot of very good players out there looking for the biggest paycheck and the likes of Liverpool, Everton, Arsenal and Tottenham who aren't behemoths of money like City, United and Chelsea can still pay great wages compared to rest of the world.