If you use a saas for login, one for business process A, one for business process B, C, D,... if just one of these fail, you might be at risk of losing business and huge amount of money for something you have no control on.
You are lowering you cost but by doing so, you are increasing your risk.
Furthermore, by using external saas, some business will have a tendency to get rid of some IT people to "really" save on cost which means you'll lose manpower for when something happens.
Software development has changed in the last decade and now everybody knows that they have to take failure into account when building software. Chaos Monkey opened the eyes of a lot of It people.
There should be some "MBA" level chaos monkey solution.
You are lowering you cost but by doing so, you are increasing your risk.
Furthermore, by using external saas, some business will have a tendency to get rid of some IT people to "really" save on cost which means you'll lose manpower for when something happens.
Software development has changed in the last decade and now everybody knows that they have to take failure into account when building software. Chaos Monkey opened the eyes of a lot of It people.
There should be some "MBA" level chaos monkey solution.