Doctrinal Edict of 2861
In the wake of the ongoing success of Operation Holy Shroud, ROM's comprehensive efforts at crippling the technological recovery of the Great Houses to ensure ComStar's prophecised supremacy, Karpov turned his eye towards resolving internal matters. 
By the late 2850's the Order's efforts to expand the HPG network had placed increasing strain upon the Terran and the First Circuit stations, dramatically slowing transmission times. The expansion also triggered an increasing fragmentation in ComStar's organisational structure and management style at many of the newer stations near the Periphery, diluting the lines of communication and control between the Primus and the Order's lower ranks, with the intent of many of the changes and doctrinal edicts imposed by Karpov becoming garbled, if not lost entirely.
Karpov's response was by first expanding the First Circuit to ten stations in 2857, adding Arcturus, Oriente, Altair and Capella, fixing the capacity issue while ensuring room for future growth. It also had the further benefit of allowing Karprov to strengthen his hold on the political First Circuit, the Order's ruling council, by installing agreeable supporters to command those stations. With regards the proliferation of management schemes, Karpov issued the Doctrinal Edict of 2861 which formalised the three-tiered structure of Precentors, Adepts and Acolytes, making official the structure established in the time of Karpov's precessors Jerome Blake and Conrad Toyama.
The Edict also formalised the process for naming a Primus, with the current holder choosing his or her successor who was then confirmed by the First Circuit, again effectively making the previous "ad-hoc" procedure official. Karpov's efforts had the desired effect, the rigid structure helping to ensure the Primus was able to communicate directly with even the lowest-ranking members of the Order and cement his control over ComStar.  So successful was the three-tier structure that it survived until the ComStar Schism with the recognising of the unofficial Demi-Precentor rank by Primus Sharilar Mori. 
- ComStar, pp. 30-31 "The Consolidations Years - ComStar Strikes"
- ComStar, p. 81 "Organization - Rank Structure"