Jack Welch's Straight from the gut

I'm around a little less than halfway through this book. Around the part were he is criticized heavily for his changes at GE. He is firing people left-right and center, and removing all unproductive businesses from the company.
I'm too a bit skeptical at this stage of the book, since working in Infosys has led me to believe that the Job Security given by a company to its employees is one of the primary reasons for a company doing well.
But Welch staunchly opposes this and iterates the fact that any such company is bound to fail.

It is an interesting book, and i recommend people to read it,esp people who think life is going be in a platter laid out for them..