As long as he is employed he will have to act as an employee of the club and will be unable to talk about what is going without placing his salary in danger.
Once the 12 months are over he will be free to sing like a canary and I fully expect him. Will probably pocket a small fortune too if all done in a book which is serialised in the press.
If the club wants his silence then they will have buy that on top of the wages is due for the next 12 months.
Ally will be in great demand for interviews next December.
That may not necessarily be the case. I have had a confidentiality agreement in my contract all of my working life. The whole point of the confidentiality agreement is to stop me talking about my work after I leave the company. I will be bound by those agreements all of my life. But I have no idea if McCoist has a confidentiality agreement in his contract though.