The old appointment is assumed to be why Staff Sergeants are referred to and addressed as "Sergeant Major" in British cavalry regiments and can also command a cavalry troop, in the same way as the old WOIII TSMs.
The old appointment is presumably why Staff Sergeants are referred to and addressed as "Sergeant Major" in British cavalry regiments. A Staff Sergeant can command a cavalry troop, in the same way as the old WOIII TSMs.