Liverpool was always a big(er) club commercially, this is the piece everyone conveniently misses when the "oh, spurs and Liverpool were in the same position during Poch era, and Liverpool kicked on" no, they didn't, they got back some of their previous status (very different). They had decades of a revenue stream and no need for extensive infrastructure updates (at the time)
Liverpool is a combination of jammy as fudge (the bank called loans and somehow in sale club ended up with no debt, fudging lottery stuff there), some very questionable medical teams (statistically odd number of squad had asthma at one point?) and some good sales that led to the ability to make a few key investments that paid off.
Our choices will be -> sportswashing of some kind or PE/American investors (Who will want their money back in some form), that's it ...