actually if you think about it they would be screwed for the fact that most of their destroyers were in repair, in a different sea and or sunken so destroyers actually are needed for submarine hunting
WHAT IF... #1; WHAT IF OPERATION RHEINÜBUNG HAD BEEN POSTPONED A LITTLE LONGER TO ALLOW THE BATTLESHIPS SCHARNHOST AND GNEISENAU TOCOMPLETE THEIR REPAIRS AND JOIN THE BISMARCK AND PRINZ EUGEN ON THE OPERATION