Now truthfully, he's talking his book, because later he talks about how one can use technologies which he asserts interrupt less to make the office less disruptive. But I do think there's a useful point here: that the modern office is an interruption factory, and that this is a problem for productivity.
I've worked in an office, and I've worked from home. Working from home makes me more productive, but this is only useful if I'm doing the right things, which is where working in an office is useful: it's where you talk to your co-workers to make sure you're doing the right things.
My ideal work place would include working from home interspersed with occasional visits to the team I was working with. How occasional those visits would be really depends on the nature of the work and the team.
But yes, he's totally right about the interrupting managers.
(via Farnham Street blog)