This is an interesting thing. There clearly lies a pooling system in football that is not dissimilar to any other hierarchical structure. You start at the bottom somewhere and work your way up. At some points on the journey, you may well be the best of the best in the tier you’re currently at. With that being the case, you are promoted to the next level up; if you’re great, up to that point in time, you may well skip a few rungs entirely. All’s well and good, and eventually you’ll be thrown in the pool with other high achievers who have backstories just as impressive as yours, if not even more so. Now that you’ve edged towards the apex of the sport, a reckoning of what your true level is is upon you - if you’re top of the class or thereabouts in this company, the only level left is CL performance over a number of seasons. The whole time, your jostles for position are being determined; the entire world is scrutinising your every action and determining where they believe you belong. By now, many star turns have seen that as bright as they shine, or once shone, they are indistinguishable from the next star and are looking up at far brighter lights than themselves. Effectively, it’s the end of the road so far as upward trajectory - your race is run and now, the next batch of upcoming stars run the gauntlet you have in their iteration of the rat race.
There have been several ‘ten Hag’s’ before this one. Most come, give it their best and are then on their way where they play out the rest of their career at a level more suited. Most come to the PL with fanfare, but as a proving ground, few get to make it and stick around on their own terms beyond three years - the PL managerial turnover rate is insane. Few get to put their slippers on and cosy up in the big room for a prolonged period of time. Indeed, only 5 managers active have over 3 years under their belt:
1. Klopp
2. Guardiola
3. Frank
4. Arteta
5. Moyes
with Silva and Howe joining the club if they make it through the summer and year, respectively.
The PL tells us few employers are happy with their helmsmen over a prolonged period of time and it shows us failure is more likely than success for the vast majority of once highly promising, upcoming managers.