The list of Dutch captains from 16 May 1652

I have a list of captains that is dated 16 May 1652 that says that Joost Bulter commanded a Directors' ship of the Stadt en Lande (Groningen). Another part of this list says that Cornelis Evertsen de Jonge commanded a Vlissingen Directors' ship. Those are rather surprising, as there are other lists that eventually give them different assignments. The list of ships of the Admiralty of Zeeland, from December 1652, says that Cornelis Evertsen de Jonge had commanded the ship Vlissingen (26 guns). However, Hendrick de Raedt's list also assigns him to the Vlissingen Directors. Joost Bulter is lists in May to June 1653 as commanding a ship of the Admiralty of Friesland. That was the ship Stad Groningen en Ommelanden (38 guns).