Redirect to marketing site without impacting other url/pools

I have a redirect problem that is a bit difficult for me to solve. Most of our sites/pools require a suffix after the main domain. 

For example:

www.example.com/production

www.example.com/sales

www.example.com/marketing

etc...

We have the default pool set to www.example.com/production. Thus, if a user types in only www.example.com with no suffix they will be sent to the production pool.

Instead, the company wants to redirect to a marketing site when no suffix is listed. The irule below

shows a redirect that is a good start. However, how do I make it work without a specific path without causing problems for the rest of the environments? Do I simply take out the path section? Will that break the rest of the redirects since the domain name is in all of them?

Original

when HTTP_REQUEST {

 if { [string tolower [HTTP::host]] eq "www.example.com" and [HTTP::path] eq "/path1/abc" } {

  HTTP::respond 301 Location "http://www.marketingsite.com"

 }

}

No path

when HTTP_REQUEST {

 if { [string tolower [HTTP::host]] eq "www.example.com" } {

  HTTP::respond 301 Location "http://www.marketingsite.com/"

 }

}