Klopp didn't have much to spend? He's spent tons of money at Liverpool. What one could say is that they showed improvement before the spending so he was doing good work regardless - like Pochettino. But eventually he has spent bigI think we'll get to see Jose's true managerial ability now at Spurs.
There's a lot of top managers who can go to Madrid or Man City, spend 500 million, and win all kinds of trophies over 3 seasons. But I feel the true test of a truly great manager is when they go to a 6th place club in a competitive league, not have much cash to spend and very quickly land at the top, while developing youth and playing attractive football.
Klopp did it at Liverpool. Fergie at Utd. Pochettino at Spurs. Arsene at Arsenal. But I'm not so sure Jose will do it at Spurs. I'm pretty sure he won't to be honest but he could prove me wrong. But I really think this is when we get to gauge his true level where he's finally not at a club that has 10 times more spending power than everyone else in the league, like he had at Madrid, First Chelsea stint, Inter and Porto.