People said we needed a complete rebuild and we were worse than Spurs last season. Suddenly a good fit for a manager comes in and it looks a lot better. In the end it probably will be a complete rebuild by the time ETH is satisfied, but the point is you can make incremental improvements that make the team look better, make individuals improve and show their worth, and maybe even bag a cup if you actually give them respect. So really a "5 year rebuild" is not as punishing as it sounds for a managerial career. It depends if you actually want to manage or just knock the ball into the net like Conte seemed to expect (which was ridiculous at Spurs)
To give an example, they sign Yves Bissouma as one of the most promising midfield talents in the league, and now he looks Championship calibre because they're playing such tumescent football and he probably has no idea what the manager wants. Son, Kulusevski should produce more, persuade Kane. Hojberg isn't a bad footballer, Romero isn't a bad footballer. There's talent there.
Agreed on De Zerbi, he would be a fantastic shout and probably perfectly suited to it. He's improved Brighton as a team and individuals from an already high starting point, with Spurs there are more ingredients to work with.