The thinking behind the "model" is optimistic at best and naïve at worst. Rapidly replacing all your experienced players with kids who have played little or no senior football is a massive gamble.
There have been successes, but also a few failures, or players who are currently miles away from the 1st team. This is impacting our performance this season. but I've said it before - finishing 6th was a massive anomaly and ultimately he worst thing that could have happened in our 1st season in this division. The big test is this summer - when we lose Clarke and possibly Neil/Ballard how we replace them is massive - I don't accept that in Seelt, Mundle, Rigg etc we already have their replacements at the club. We need to move up a level in terms of the players we bring in. £40m for 2 players (for example) should equal 4 signings at £10m each to raise the levels of quality in the 1st team whilst allowing the younger lads to develop.
Imagine signing experienced at quality at CB, CDM, ST, LW for £10m each and creating a real spine to the team whilst the likes of Rigg, Ba, Aouchiche, Mundle, Mayenda etc etc can develop around them? No net outlay, but an overall uplift in quality (despite losing 2 of our best players)
That is how the model was sold, that will be how people will judge.