The greater part of the damage had been done as you say before BK took over when Johnson was chairman.
As for Dave, perhaps you should ad to the list.
Moved out of the relegation zone,
Got into Europe a couple of times, failure there doen to Moyes not BK
Agree stadium was a fail
But investment? Johnson ripped him off, has no cash yes would rather we had Tan, Fernandes, The Villain man, Glaezers, Hicks and Co, Red Bull???
Which star players, Rooney and Fellaini?
Think Moyes did have quite a bit of cash if you look at his signings, how much did Bily cost?
You only ever see one side of things, that which suits you and ignore the rest.
Is he the new hamburglar??