I'm sorry Liam but this is just a shocking post. Every thing in it is wrong. Dortmund have probably been the best and most exciting team to watch in Europe these past few years, and have won plenty of trophies under him as well despite having virtually no funds to compete with Bayern. This season they've struggled because they've had the worst luck with injuries I've ever seen. They're first and second choice back line all got long term injuries, along with a few of their midfielders. Any team is going to struggle, yet they are still good to watch.
In his first season in charge, he took them from 13th place to 6th, along with winning the Supercup against Bayern. The season after, he finished 5th, showing continuous improvements and getting them to play better together, and then he managed to win back to back league titles with them, along with winning the german cup, and then last season he finished 2nd place behind Bayern but got to the champions league final. All this while being brilliant to watch and on basically a net spend of like 4 million.
Ole has taken over a Cardiff side who had to play united, City and Arsenal, and Newcastle away I think all in their first few games. I'm not exactly sure what you expected, but at Molde he won back to back titles for the first time in their history, and I think he'll manage to save Cardiff from relegation too. Also on Simeone, there were plenty on here saying he'd be a great choice, because of how good he's made them the past few years. Again, they're challenging for the title now after winning the cup against Madrid last season, and all while playing good stuff, and not spending loads on players (in fact they, like Dortmund, have lost their best players every summer).
Its not flavour of the month when they've been doing it for years. Its just recognizing great young managers.