Update: Actually CONCACAF have plenty FIFA match dates for the current system. Thanks usafan12 for pointing this out. I don't understand why Chuck Blazer is complaining...
"What I don't get vis-á-vis Blazer's excuse is this:
Let's assume that FIFA will provide as many FIFA Match Days for this WC qualifying cycle as for 2010 (if I'm wrong, it's probably because we have more this time around). As has been discussed, in the new format we're still talking about the same 18-20 matchdays as before. Yet instead of starting qualifying in the summer of the WC-2 year (e.g. 2004, 2008), this time we'll start in the fall of the WC-3 year (2011). How exactly are there not enough FIFA days to get this new system done (with the 3rd-place playoff) before the intercontinental playoffs?
And besides, I have a hard time believing that the Caribbean majority would consider giving up the cashcow games they can get, at least in the Second Round (of 32). "
CONCACAF's new qualifying system received a big blow when FIFA decided not to give CONCACAF an extra 0.5 slot.
Now CONCACAF need four extra match days: two to decide their 3rd qualifiers (home and away matches between the second placed teams in the last groups stage) and two for the intercontinental playoffs. That's actually six, because only two of the four match dates available in October and November 2013 can be used for interncontinental playoffs as FIFA said "Sufficient time will be allowed between the home and away legs of these (intercontinental) play-offs". Most likely the first leg of the intercontinental playoffs will be played in October 2013, with the second leg scheduled for November 2013, much like the AFC - OFC playoff for the 2010 FIFA World Cup.
Thus CONCACAF need to finish their last group stage before September 2013. Chuck Blazer, secretary general of CONCACAF, said they will have to completely re-do their qualifying system.