You are really a stupid fuck if you dont even know your teams history
Yilmaz Gokdel was a real Galatasarayli and he coached galatasaray in the seventies
your list says Gokdel was never coach.

thats not corret

Gokdel was succeeded by Don Hawe !!
that means that Gokdel started off as coach of the 74-75 he even won a Cup with Galatasaray Ataturk Cup