At all times we have an teammate on call for emergencies, but we acknowledge he’s getting few opportunities for deep work, and we rotate weekly because that role really sucks.
From “The Joel Test”:
> Noise, phone calls, going out for lunch, having to drive 5 minutes to Starbucks for coffee, and interruptions by coworkers—especially interruptions by coworkers—all knock you out of the zone. If a coworker asks you a question, causing a 1 minute interruption, but this knocks you out of the zone badly enough that it takes you half an hour to get productive again, your overall productivity is in serious trouble.
From “The Joel Test”:
> Noise, phone calls, going out for lunch, having to drive 5 minutes to Starbucks for coffee, and interruptions by coworkers—especially interruptions by coworkers—all knock you out of the zone. If a coworker asks you a question, causing a 1 minute interruption, but this knocks you out of the zone badly enough that it takes you half an hour to get productive again, your overall productivity is in serious trouble.