Definitely not sustainable at Conference North level. Go back a few decades the club had Manager,assistant manager possibly a coach,physio and Youth team manager. I know Sports science has moved on immeasurably in modern day football but you have to cut your cloth accordingly.
Football staff needed:
1st Team Manager
Asst Manager
Keeper Coach
Physio
U18 Manager
U18 Asst Manager
U18 Physio
You don’t need SS at NLN level, just big, fit, strong lads who can half play.