I wouldn't go as far as to say not allowing knowledge workers to install, say, Tweetdeck, on their computers is a reason why large firms have difficulty competing with smaller outfits. But I think it is indicative of the mentality that makes them uncompetitive.

I worked in a business that was acquired by a large corporation with a command and control mindset. Overnight we went from a laissez faire approach to desktop computers and software, to centrally dictated tools. Within a year the business revenue halved and the entire management team decamped.

It wasn't the lack of software choices that did the damage, it was the lack of choice period. Managers and skilled staff were no longer able to make decisions about any aspect of their work.

In short, not allowing knowledge artisans to choose their tools is indicative of a bigger - and more serious problem.