You mean Conservation of Angular Momentum, not Energy.
But yes, that’s also a possibillity.
But again, I don’t have the Math skills...
We just need to find someone to do the calculations for our Master Amorphous Collapsing Universe theory (or MACU for short). What 'bout NASA or MIT? I'd bet they've got some folks looking for something to do and maybe some spare supercomputer nerds we could borrow to reprogram their expanding universe model in reverse!