Yes, Punjab and Delhi should go (OR they should get merged with Lucknow and form a team called North Giants or something). Hyderabad has a chance for resurgence, because they have won trophies before. Quality of teams is definitely getting diluted due to quantity of teams, especially in the bowling department! But it is good to see lots of promising young Indian Batsmen showing up this season. In fact they have kept this tournament competitive...
Deccan Chargers did not Sunrisers Hyderabad.
I think IPL should allow 5 foreign players per team to make it more competitive.