Cohort commander?

[Frank]

There were also 18-year-old centurions! ;-)

Sure, ex equite romano with a nice letter of recommendation. :woot:
I hope that such Centurions listened to their Signifer, who most propably stood near to him in the battleline. And this young Praefectus Cohortis listened to his Centurio Princeps, and this Legate who was 10 years out of service and had just 2-3 years military experience at all, had a primipilus iterum as chief of staff.

Sometimes I wonder, how the romans ever could conquer anything beyond Romes city wall.