I think it would have happened under Vichai I dont buy this things would have been better stuff.
The destruction started under Ranieri, who got a free pass after the league win as would be expected. Sadly he dismantled to fitness, sports science, sports psychology , performance analytics departments. Since 2008 Pearson had built up an elite structure and team. Puel and Macia briefly averted the decline, then Rodgers finished the job believing his team knew best, also increasing training intensity hence increased injuries. The whole structure within the club needs a complete clear out, there is too many complacent people, sadly this is not easy to fix and it stems from the owner and leadership, the longer they remain in position its unlikely to change a lot. The football side needs serious change but there is a general malaise and complacency throughout the club where complete ineptitude and mediocrity is normalised, this is not an elite sport club. As a business its even worse, the biggest customers are treated with utter contempt, even basic commercial activities like ticketing, retail etc, expanding revenue streams are absolutely third rate for a multimillion pound business. If this were the real business world, these lot would have gone bust years ago.