I've stopped taking Mark Cuban seriously long ago. The guy got lucky once, and mistakes it for business genius, it is that simple.
Sure, if you have a couple of billion lying around it is easy to tell other people how to solve their problems. But unlike say Warren Buffet I've yet to see him do something that commanded my respect.
I'd challenge Mark Cuban to follow his own plan, pretend he's broke for 60 days and then show that by his own measure he can make it work.
If he succeeds with that he'll definitely have me take him serious again, but I doubt he could and until that happens this is just another "I'm rich therefore I blog" addition to the S/N ratio.