I think the drafting and development has been a bit of a mixed bag. I'll absolutely agree it ultimately hasn't been good enough, but at the same time it's likely the best it's been in decades as the minor league system has been graduating one really solid major league player per season. 2020 saw the graduation of Kirk, 2021 was Manoah, 2022 saw Moreno who was turned into Varsho, 2023 saw Schneider who is looking like a top of the order bat since his callup etc. Where the system takes a hit is in overall depth of the blue chip prospects, as although the team has been able to use the system to make trades for the likes of Berrios, Chapman, Varsho and others it hasn't had enough overall depth to allow trades for the true premium players, whether it's Jose Ramirez, Juan Soto or others. I can't help but think about how much better the offense would be if they would have had the available pitching depth to allow them to trade for Juan Soto in the offseason.
I recall reading that there might have been a massive extenuating circumstance in the 2023 Angels deadline in that they might not have been able to trade Ohtani based on the various marketing deals they had which were contingent on Ohtani being on the roster.