I'm not sure that I totally agree with that statement.
There are plenty of names in the OIH that can be traded successfully that are not associated with the current banking mess. And they are NOT AT ALL RANDOM since they are strongly correllated with the underlying commodity.
DO, RIG, APA, DVN, CHK, NOV, SLB, HP, PTEN, NBR, etc. - - - just to name a few.