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Lots of SEOs believe that putting a bunch of pages (especially your money pages) on a subdomain is not a good idea - because if they were in a folder they would rank better because their linkjuice is part of the main site. Having a duplicate set of product pages that have noindex links into them is a crazy idea for many reasons (SEO, maintenance, linkjuice waste, plain irrationality). Your company, IMO, is a good target for take-over or buy-out.  A new owner could streamline this stuff and make a lot more money.    If a new company buys for this reason, they will probably fire all of the SEOs and use their own. Opinions on this may differ.   As a manager who is paid in the basis of performance, I have told you where my bets would be placed.