I think they're doing just fine without a playmaker so far. It's a job Tevez and Messi were made to share between themselves in the way they are doing, and Maxi bring an extra verticalidad to the midfield to balance out Angel Di María's - ahem - contribution thus far.
The defence is a mess though. It's plain Maradona's only decided to play with full backs since naming the squad, because if it had been the plan all along he'd have named Javier Zanetti. I mean he can't seriously think Jonás is a better right back, can he?!
By the way Diskosis, I'm Sam Kelly / Twitterer HEGS_com on the Guardian Fans' Network. Glad I noticed you here - if you still want to head to San Martín on Tuesday it'll be a lot easier to organise via this than on Twitter!