Although Athens didn't have the infrastructure (I suppose you're referring to additional public works, sports venues and partecipants' accommodation), it completed ALL the required infrastucure works on time, even though I know 1 case where quality of works was compromised due to delays.

Qatar can have the infrastructure on time, and certainly has the money and the unbuilt land to develop. Also, it is likely that Qatar can make use of the Olympic-sized venues by giving them to the respective national federations and financially support their maintenance.

I just hope that Doha will not make the same mistake as Athens, that more landscaping should have been made along and adjacent to the new infrastructure works.