The following quote is from this blog post. Quite interesting in a historical context.
Crowley, in a letter to Germer dated March 14, 1942 e.v., wrote:
I shall appoint you as my successor as O.H.O. [i.e. Outer Head of the Order of O.T.O.], but on special terms. It is quite clear to me that a complete change in the structure of the Order, and in its methods, is necessary.
Such a change was never implemented. Germer later wrote of Crowley:
He suggested to me that I may either drop this form or system of working, or devise my entirely independent method”. He apparently chose the former option, as he ceased all initiations and dropped the work entirely, choosing to focus on publishing Crowley’s works alone. Germer is often criticized for this; but it was his prerogative.
And in a letter dated Nov. 24, 1941, Aleister Crowley expatiated on these points as follows:
Note that the O.T.O. will probably have to be completely reconstructed. The temp [sic] of the New Aeon seems unfavourable for Lodges, and the “Secrets” are unintelligible to anyone who has not made a long study of the system. At present there are really two sections: the rituals – up to Rose Croix; and the essays of instruction dealing with the one real secret. The ritual corresponding with these were never written, except the Templar. So I rather expect that it will be up to you to devise some totally new method of communicating the real secret. … you, not I, are the axle of the wheel.