I get the feeling a lot of politicians are there to help themselves financially, first and foremost. I don't really need to do that, and I thought if I could do something for sport in Scotland, that would be really fulfilling.

I'm a better coach now than when I joined Celtic. The longer you stay in any job, the better you become. If you lose your drive, your enthusiasm, your imagination, that experience is no good.

I get the feeling a lot of politicians are there to help themselves financially, first and foremost. I don't really need to do that, and I thought if I could do something for sport in Scotland, that would be really fulfilling.

Arsene Wenger was talking about comparisons with Johan Cruyff, a player who only comes around every 10 years and Thierry Henry is definitely one of those

I think if you've managed Celtic or Rangers you can go on to be Prime Minister of Great Britain, it's that hard.

I did think there were one or two referees who had a personal thing against me. It wasn't them versus Celtic - it was them against me! I just think they wanted to take me on.

It took me 35 years of being involved at a decent level of football to become manager at a great club like Celtic.