According to Gartner, “Security and risk management leaders should build a migration plan from legacy perimeter and hardware-based offerings to a SASE model,” which is a “pragmatic and compelling model that can be partially or fully implemented today.”
Finding the right vendor for implementing SASE is the fundamental part of a migration plan. You’ll need to assess the various vendors, and determine whether they provide a truly converged SASE platform that can support your specific business requirements.
Here’s an excellent RFP template to help you navigate the project. You can use the questions as is, or for reference, when shopping for SASE vendors.