In my youth, full backs only had two jobs.
1)Hoof the ball upfield to someone who had the skill to do something with it. Dribbling was something these sub-species only did when they were eating food in the bar after the game.
It would be very unlikely that they could spell the words " ball control "
2) kick lumps out of the opposing winger.
My boyhood hero was a full back named Willie Coburn. ( St Johnstone ) What a guy!! I saw him kick lumps out of all who were stupid enough to try to pass him.
But, gradually, the full back has changed. An IQ of more than 45 is probably now the norm.
They have skills.
None more so than Marcelo, Brazilian full back with REAL MADRID.
Ive been watching this guy for a while now and just love his skills/ball control, which are up there with the best. IMHO
I saw something on the TV the other night, against Bayern Munich.
He made it look so easy, but I thought it was fantastic, and sums the guy up. Watch this short clip (only 6 seconds )
https://www.youtube.com/watch?v=LXdHcEuKyKQ