Trying to configure an irule to rewrite specific headers for external redirection while not affecting headers going to local pool

We have local servers that host "www.abc.com". Our customer wanted a third party ( to host the "/careers/jobs" part. This is what I mean when I reference "external site". That specific URI is being redirected from our F5 back out to the internet to that third party site. The customer also wants users to only see "www.abc.com" in the URL instead of "www.xyz.com". That is why the irule is rewriting the headers. The current irule that I provided does that. Now the customer wants to bring just "/careers/jobs/search" back to be hosted on the local servers and keep the rest of "/careers/jobs" on the third party hosted site. I need to modify the current irule to support the new request and also support a SSL Pool.