iRule Issue

For the rate shaping, your principal issue is that you are running 9.x. That version of code is well past end-of-life. Having said that, as Chris says (but with link to 9.x guide):

• BIG-IP version v9.0 Configuration Guide for Local Traffic Management: Configuring Rate Shaping

For the long or set, the use of a glob switch is generally more readable:

when HTTP_REQUEST {
    switch -glob [string tolower [HTTP::host]] {
        "www.careers.philips.com*" {
            HTTP::redirect "http://www.philips.com/about/careers"
        }
        
        "www.peopleclick.com*" - 
        "eeosource.peopleclick.com*" - 
        "eeoanalytics.peopleclick.com*" - 
        "eeodiversity.peopleclick.com*" - 
        "generator.peopleclick.com*" - 
        "optimum.peopleclick.com*" - 
        "secure.peopleclick.com*" - 
        "strategichr.peopleclick.com*" - 
        "www.itiliti.com*" - 
        "www.eeosource.com*" - 
        "www.eeosource.net*" - 
        "www.eeosource.org*" - 
        "elearning.peopleclick.com*" {
            pool CorpWeb
        }
        
        default {
            pool ProdWeb
        }
    }
}

I assume you want the equivalent of starts_with rather than contains, but it is trivial to change the meaning.

But, as @drteeth (a dentist?) observes, matchclass is generally a superior way to achieve this sort of thing:

• matchclass

which would look something like this (assuming you've created a class called corp-web-hosts in which the indices are lower-case only hostnames):

when HTTP_REQUEST {
    if { [HTTP::host] starts_with "www.careers.philips.com"} {
        HTTP::redirect "http://www.philips.com/about/careers"
    }
    elseif { [matchclass host-match starts_with [string tolower [HTTP::host]]] } {
        pool CorpWeb
    }
    else {
        pool ProdWeb
    }
}

Strictly speaking, the else conditional is not required if the default pool for the Virtual Server is already set to ProdWeb.