Hindsight is great but the continuance of the "49% takeover" by Moshiri has just led to two camps inside the club with two viewpoints on everything and the result is the mish-mash we've seen.
Having too many cooks not only leads to errors in decision making, it impedes transparency and accountability for performance.
This is encapulsated in the roles of Elstone and Walsh. There is one school of thought that labels both men as mere pen-pushers, who can't really be held responsible for our current state, as neither wields any real power, and the opposite theory that both go off in different tangents with no joined-up decision making.
I don't actually think a lack of ambition is at the core of our problems - but we absolutely do not have a structure that is designed to build a successful club and team. We don't have it now, and didn't have it when Moyes had us on the cusp of the top four and we could have pushed on. We didn't have it after the relative successes of the 80s and thus were left behind after the inception of the PL.
We need people of calibre in all roles and a plan that moves the whole club forward as a unit - Spurs are that club. They have made their own mistakes and learned from them, and don't spend a huge amount in net terms. The difference is that they have a top-class executive and management structure that gets most of the key decisions right. We have the exact opposite.