Clubs wont stand in the way of an assistant leaving to take up a senior coaching role, but an assistant looking to take on an assistant role will normally have to be out of contract, or at least wait until seasons end.
This is a great opportunity for the perpetual sooks. We will either have to not replace chocko or replace him with an unknown. Either way it will give them plenty of opportunity to cry and moan like a baby with a crappy nappy.
So much opportunity for the so called supporters to stick the boots into the club again - Such happy times ahead for the whiny bunnies.