IT infrastructure is moving to the cloud. Not only the applications you use but the infrastructure used to manage your users, network and security.
This is one of the biggest changes in the IT industry in over a decade. No longer do you need to wait untill you have enough users to benefit from the use of productivty tools enterprises have at their disposal. You can start on the ladder with as little as you need and scale as fast as you need. The added benefit is that is is all rolled in to a monthly subscriptions and there is no need to shell out for that expensive equipment before you can fully untilise it.