Betweenford has called himself many things, including himself as the watcher of the watch. This seems to have little to no meaning at all, unless you were to carefully take into play the Prologue story, which still exists. He tells the Unknown character that he is to be the new Warden of the Oversoul, and he will be the one to guide and walk him through the process. Which gives him the rightful title of "Watcher of the Watch", as he outranks even the Warden of the Oversoul.
This seems to indicate there are levels of Hierarchy even beyond what Oric controls, and even he may lose his time as Owner; even said by the Morse cord that has bee decoded much earlier; and how Oric's last cycle has come.
Betweenford's brothers have ample evidence to indicate they are going against the standard cycle rules. As referenced by FFS, the design for the person who revived Rilitia was used partially for Spira, who seems to be a Sibling of Betweenford. Although at first in the revival !!!! seems to be reprimanding
? for not knowing how to do things properly, like Betweenford in the Prologue; and handling the souls of siblings might just come with the Job of Oversoul.
As the Warrens have also been referenced as a prison for magical psychos multiple times, it is surprising tha it must contain several different Wardens, each who control different important parts of everything.
Basically the entire point of this tangent is to say that FFS is a clever mastermind, Betweenford and/or his brothers are doing conspiracies, and BetweenFord might have been there with Spira, who could be the chracater in the Prologue.