Angel chose services from multiple cloud providers. He tells you that he made the choice so that the company could select the exact tools that best fit each of the unique facets of the company's IT needs. Because the company is not tied down to one provider, there are many options from which to choose, and Angel is able to get a few of them to reduce their prices because he lets them know he is shopping around. He had to make some hard choices between quality and price, but ultimately feels he chose wisely. Once the service contracts are signed and the products available, he is able to use his IT expertise to migrate individual services to the necessary platforms and roll out the new products to the company. Three months later, as Angel finishes up the cloud migration, he's programming in some cloud monitoring to keep track of how well the cloud services are meeting your company's needs. He asks for your suggestions on how best to assess the ongoing success of the new cloud infrastructure. What do you emphasize as the priority for follow-up assessment?