Feyenoord's newly appointed trainer Ruud Gullit believes that the Dutch FA (KNVB) will not will not stand in his way by demanding too higher compensation to buy off the remainder of his contract.  Gullit, who played for three years for the Rotterdammers from 1982-85, stated on Dutch TV last night:   "I have always had the desire to work as coach at Feyenoord. The club always had a special place in my heart. The KNVB knows that. I'm almost certain that they will let me go. This is a unique chance. They have six months to find a replacement for me,"