Well, Paul tends to spin things, ... ... ...
Of course! Most mature adults remember their youth somewhat differently than others who also lived through it. That's just perspective. George & Ringo agreed that John quit first in '69 right after Abbey Road. And, John, George and Ringo eventually found out about Klein and sued him in '73, also! But soon John & Paul got along OK in their L.A. studio visits that produced nothing but "A Toot And A Snore In '74" bootleg noise. And they both tell of occasional visits after that until John's passing. John even complimented Paul's work with Wings and was a bit jealous of his success.
... ... and there certainly was personnel turnover in Wings. ... ...
Yes, there were always various business misunderstandings with other musicians, except for Denny Laine and, of course, Linda. Denny worked as a creative partner, as Paul wanted. The others, generally, worked as sidemen but were unhappy with sidemen pay. And Paul was never really much of a manager, certainly no Brian Epstein. At least that's the simplified version I've read from most sources.
... ... John’s use of EM was a typical move of hiring an organized backing band for live purposes. ... ...
Right! John shows 'em the chords and away they go with minimal, if any, rehearsal. Seat-of-the pants playing, actually just jamming, with John yelling directions during the songs. Rock & roll! Rough & raw! A-wop-bop-a-loo-lop ... ...
Don’t you think it’s telling that Paul had his first one-man-band solo album all ready to go, that it was released at about the same time as Let It Be?
Purely coincidence. Paul first retreated into "the bottle" after losing his best friends and collaborators of so many years. But he pulled himself out with music, visiting family for a "knees up" at the pub, then at his home studio noodling with his wife and kids.
George had released solo albums in '68 & '69. Ringo released his first solo album in March '70. And the Let It Be tapes had been in & out of the vault for various unsuccessful mixes for over a year when the McCartney album was ready for release. That's when Paul first learned about Spector's literal orchestration of what was supposed to be their Get Back to rough & raw Rock & Roll! And, poor Ringo was sent to beg Paul to hold up release of his album in favor of that abominated Let It Be! No wonder Paul had to sue The Beatles to free himself from Allen Klein!
No, Paul had an album ready to go in April '70, so he released it. I don't see anything nefarious in that. It would have been more disingenuous to hold it up artificially in the name of making more money by not overlapping album releases, as Klein wanted.
... ... I don’t think my scenario was likely, but it was remotely possible. However, George was raring to go solo, had that backlog of tunes to get out, Ringo was more interested in movies, and Harry was already a mess, the lost weekend might have happened sooner, trainwrecking the proceedings(and I’m not gonna bring up Yoko, that’s too easy). Plus there wouldn’t have been that complete Liverpool homeboy bond.
I think Klein was just as happy to
manage steal from several Beatles solo careers as a single group. So he gladly joined Yoko in constantly telling John he was the overarching artistic genius who didn't need anyone else. Thus, John had no interest in the extra work of yet another gathering of egos to contend with.
And George was happy just producing his own, or others', music. Though he certainly marshalled together some great supergroups for the
Concert For Bangla Desh, and for his later tours. But he really wasn't into touring and continuous group dynamics until The Traveling Wilburys much later. Too bad they didn't get to tour.
And Ringo wasn't into continuous groups anymore, either. It wasn't until '89 that he hit upon the supergroup concept of his All-Starr Band, with established rockstars coming and going at will! Nobody's tied to anybody. You wanna play, you play. You wanna go, you go. I can't even imagine the business dynamics, but it seems to work well for Ringo even today!
Only Paul has continuously toured since The Beatles breakup. It took quite a while, but he finally formed a stable band in 2002 that still keeps him busy these days.