when upgrading Siteminder to the newest release (e.g. while performing a migration) we usually suggest the following migration order:
migrate one policy server, migrate one web agent, migrate all the other policy server and webagent, migrate the policy store and finally migrate the Admin UI.
One of my customer is migrating from the release r12.0 SP3 CR11 to the release r12.52 SP2 Cr1 and they would like to defer the webagent migration , and complete all the other steps in advance (migrate policy server, then migrate policy store and then migrate admin ui) leaving webagent at old release
What are the pros/cons of migrating all the component except the web agents?