I'm not even sure if the bolded part is English. "All achievements you can muster", full stop. Every single thing Poch don't matter, full stop. Anyway that's not the crux of the matter
I believe you are indeed clutching at straws. Chelsea are as adept at selling their players at a premium as Ajax are at churning out elite young players in their academy with or without Ten hag who is known for not even rotating his starting 11. Chelsea's transfer business is impressive and unmatched in the PL. The sheer number of high profile in and outs at Chelsea has been astronomically higher than that at Spurs during Pochettino's time there.
I can see why you're fixated on Chelsea. This club sold duds like Oscar for 66M (in US dollars) to China and paid for flop David Luiz twice and still overall profited off him from sales to PSG and Arsenal. PSG paid 54M for him as a flop! They even got a 2.75 M loan fee for Charly Musonda Jr from Celtic and he never established himself as a first teamer there. They bought André Schürrle for 24.20 M in 2013/14 and flipped him for 35.20M the season next! Can't tell me Spurs had the same capabilities to buy and sell high profile players on their tight budget. They sold Ramires for 30.80M in 2015/16 and replaced him with Kante the season next! Talk about efficiency. The same season they bought Kante, who turned out to be a huge success, is the same season they sold flop Oscar for the aforementioned 66M. They also sold flop Djilobidji for 10.45M that same season and Patrick Bamford for 7.59M!
They sold Tomas Kalas for 9.90 M to championship club Bristol city the same season they made 126M for a finished Hazard in 19/20. They also sold Ola Aina for 10.75M to Torino in the same window. In 19/20, the same season Pochettino was fired, that Hazard transfer boosted their net income as they took in 123.49M after only spending 42.50M and gaining 172.99M in player sells. Which other top clubs stack up to this? Real maybe without even looking but it's not close. Speaking of Hazard, Chelsea sold his brother Thoran for 8.8M in 2015/16 and he hardly made a mark there. Also, Chelsea had championship winning squads before and after Pochettinos time at Spurs. They simply added to them by selling and buying high successfully. Can you say Spurs ever had a team ready to challenge for big titles under Pochettino?
Conveniently you leave out my main question: if we were to transfer his achievements to United, would he be considered a success? We've had managers who achieved way more than Poch, but still got the sack and are considered underachievers. What has Poch done that is considered so remarkable that is definitely a gurantee of sucess at United?
So far, his greatest work has been at the underdogs. Soton, Spurs, Espanyol. His PSG stint hasn't impressed anyone. What has he shown at these clubs that would translate to United? He managed to make them punch above their weight. Well, so does Moyes to this day. Make no mistake, Poch is better than Moyes. But is Poch good enough for United is my question? A team where you are expected to challenge for the title and push deep into the CL. What inkling has he shown in his career that he is obssessed with winning?
As for your question: were Spurs ready to challenge for the title under Poch?
YES!
Leicester won it. There was no peak Klopp and Pep yet in the league. It was there for the taking.
Was his squad good enough?
Kane, Son to this day are considered WC. They were in their prime under Poch. Hell, Kane was considered the best CF in the world under him.
He also had Lloris, Verthogen, Walker, Rose, etc etc He had good squad players in Sissoko and Wanayama who fit his system to perfection.
The man had all the players to win some kind of trophy. Yet didn't. And you think he will come to United and outperform his best at Spurs with a much poorer squad? That with huge question marks over his squad building abilities in a team were we are on the verge of losing 7-8 players in the summer that will need replacing. I don't know, but his record at Spurs when he was tasked with recruiting isn't the best and that's me putting it mildly.
Not saying Poch is poor manager. Quiet the opposite. You have to be exceptional to manage in the PL and finish in the Top half of the table. What I am saying though is "Poch enough for us to challenge the likes of Pep and Klopp" for the title? And we already know the answer since he had a crack at a much weaker PL and failed. He'd be perfect for teams like Spurs, Arsenal and Leicester who are trying to establish a foothold in the Top4. But is TOP 4 all our aspirations?
That's why I'll stick with someone who "isn't proven", but has a track record of producing amazing results no matter the team, big or small. Also someone who actully outplays big teams on their home turf with far inferior squads. Someone who trains his teams to actually impose themselves rather than be reactive. Big clubs, trully big clubs don't play football that way. You will never see Barcelona adopta a pragamatic approach when facing off against off against European giants.
As for the Ajax youth team. One thing I don't understand is why hasn't Ajax pulled anything similar in Europe since the LVG days? Why haven't they won the Eredevise 3 years prior to Ten Hag's arrival despite all of those players already being present? You can be the biggest spender in the league, but sometimes you need that manager that will take you to the next level. And I believe that if we are serious about challenging for major trophies while playing beautiful football, ETH is the man for the job.