The fact that the unit did not partake in campaigns during the 7th century preserved it from the reforms that affected the field army during this period, so that the late antique terminology for its junior officers remained relatively intact. The Domestic was assisted by a "topotērētēs" (τοποτηρητής, lit. "placeholder", "lieutenant") and a "chartoularios" (χαρτουλάριος, "secretary"). The "topotērētēs" was of relatively low-to-middle court rank (originally "stratōr" or "spatharios", later "spatharokandidatos"). He may have commanded provincial detachments of the regiment, and indeed there may have been more than one "topotērētai" at the same time, for each of these detachments.