Deccan Chargers, Delhi Daredevils, Kings XI Punjab and probably Mahela's Kochi Tuskers seem to be the weakest teams in this years' IPL. DC and DD have already lost 2 games. Kings XI might do so next. Tuskers have the biggest comic of the modern times in their team and he can be the factor between win and loss.
Delhi Daredevils is too dependent on Warner and Sehwag. Sehwag hasnt fired in the first 2 games and he seems to be going back to the 2007 days (Just a slight hint, given the way he has thrown his wickets after that 175).
The others except Y V Rao have failed to step up when required and the bowling has looked pedestal. Irfan Pathan troubled Mumbai batsmen for a while in first game but today he was taken to cleaners by Rahul Dravid who knows his bowling inside out from 2003 days .
Lest Sehwag steps up his game and stays for good part of 20 overs, its difficult to imaging DD going all the way to the semis.
Ditto for Deccan Chargers, these 2 teams have been hit by players exodus and though they have signed few key players but they seem off at this moment.