Reading the Zola thread has got me thinking.

In terms of the disparity between playing and managing, has it ever been greater than Zola?

An absolutely sumptuous player but seemingly not cut out for the dugout.

In terms of top class players who then go on to coach/manage, is there anyone that can compare to Gianfranco?

On the same topic, are there any great players who go on to become great managers?

Apart from OGS of course.