There are plenty of people commenting on Cricinfo that MSD's decision to field a somewhat second-string side will come to bite him back as CSK will have to face Delhi if they lose today's encounter.
I think it is a very bullish and positive statement being made by MSD. Firstly, he wants to give all his boys a go so that he will be in a better position to pick the best XI for the semis and, most probably, the finals.
The second, and most important one, is that he isn't scared of taking the bull by the horns. He isn't scared of taking on Delhi in the semis and, why should he? We've got the most flexible side in the tournament and I think we can romp past any team.
As I post this, Punjab are 38/2 after 8.5 overs, needing 79 from 67 balls. A good over can do the job for Punjab, but looks like it isn't coming. :)