DAVID OGILVIE from Milngavie asked Derek:
Who was the best manager you played for?
Without doubt, it was Jock Wallace.
Jock wasn't the greatest tactician in the world. But he knew how to get the best out of his players.
He enjoyed great success as a result. He helped Rangers win two Trebles in three years as well as land the European Cup-Winners' Cup.
If you have a question for Derek, just email him at firstname.lastname@example.org and we'll print the answer alongside the question.