Who could command a second German battleship pair?

Who could serve as Lütjens's deputy if four German battleships sortied in two pairs?

Erich Bey was a plausible choice to command the Scharnhorst-class pair under Lütjens.

A four-ship operation divided into two pairs would need a second flag officer as well as an overall commander. Erich Bey was a plausible choice because he had become a rear admiral in 1940 and would later reach vice admiral. Lütjens would remain the senior commander, probably aboard Bismarck, while Bey could lead the Scharnhorst-class pair. Force concentration still required a workable subordinate command structure when ships separated to search or raid.