Capello is reported to be flying into London on Wednesday for talks with the Football Association with a view to succeeding Steve McClaren as national team boss.
Gullit - 'No Sexy Football!'
Gullit: "He doesn't play for the beauty of the game but to win.
"You don't see him laughing much - he's moody. But he knows what he wants. You have to go his way or you will get in trouble. He screams at you.
"You need to be well drilled to play for him - very disciplined - and you certainly don't fool around with him, that's for sure.
"Italians are all about looking good, defending your reputation. When you've got that you become very hard to beat. If you become that clinical, you don't even have to play well to win - that's how come they have won so many championships."
AC Milan midfielder Clarence Seedorf: "He's a tough guy, very straight. He's very dedicated. Of course it has been quite a while since I worked with him in Madrid, but I think he has much more experience now than 10 years ago."