Christer Bergstrom BOB book

[Juha]

BoB as it was was an attrition campaign, and so one must look the situation on both sides, Jagdwaffen had also lost many experienced leaders from May 40 onwards and was badly under establishment in pilots, so it also had bad problems in replacing its losses.

Airborne attack alone would have been madness, airborne troops didn't have firepower and staying power of normal troops. Even on Crete Germans needed seaborne troops to complete the conquest of the island. And seaborne invasion to England would probably have been a failure. Germans would have lost some of its best troops. Of course also RN would have suffered significant losses and KM, too. What effects that would have had to the war at sea is anyone's guess.