I too remember that team. Magic.
Zico was out right, Socrates central, Serginho was the number 9 however - with Eder out left.
of course these were not restricted.
falcao played a massive role in midfield as well. but like many great playmakers (Platini, Zidane) he could take the ball forward...
the big problem back then was the defence. Star players like Junior would push forward. But unlike the rubbish nowadays they could defend from time to time. there was naivety however. look at the italy game in Seville...
A better number 9 could have helped, while he scored (at least 2) Serginho missed about 700
In his defence, I understand he was very good at home.
I wasnt around for the 70s team...but the footage would suggest that they would have won a match.
but for entertainment - it would be incredibly close.