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Anyone else has any idea ?

Thank Mike. Yeah I read that post you linked to. I just wonder whether everyone else is experiencing this problem. But again thank you

When moving content to a new site, I feel it is important to move as much as you can and leave little behind if you want all your pages to rank the same. The problem with moving pages and content is all the INTERNAL links, title tags, etc that make the website rank. It is much easier to delete pages after the whole website is moved. It very hard to put back all the Internal links and title tags. Yet these elements are critical to how people navigate your site and how google looks at the way you have supported the information on your website by linking to additional internal content relative to any particular page. In most cases if a website is ranking for multiple keywords in their business niche deleting any of the old pages, is just not necessary and may be harmful, until that page becomes a 'problem' to ranking, bad links to it, or simply not indexed anymore. Remember it is a counting game for most Internal links. So having 50 old pages linking to a new upper level and visible page, you want to rank, is very helpful. Even if the content is not something you want visitors to find, it is easy to leave the old content out of direct navigation on the new site so the only people that see it are from searches anyway and will be a small number of people. Everyone wants only high ranking pages, optimized to rank for particular keywords but that is rarely what happens. And google knows this, so having a mixture of poor pages and great pages actually will keep you from any negative points with google.

(1) Yes.  G+ authorship represents real human authors, and it's not only perfectly natural for an author to contribute to multiple sites, it should make that author more credible, as multiple websites "believe in" their expertise and accept their contributions.  I also believe that AuthorRank will consider the diversity of authors writing for a given site to be a positive thing. (2) AuthorRank doesn't really exist yet, according to most experts, FYI.  But I don't know if you can find anyone who'd predict that it WON'T make it into the algorithm soon.  PageRank is a completely separate factor & algo.  The Google ranking algorithm is a combination of many factors, of which PageRank is one, AuthorRank will likely be one eventually, Panda is one, Penguin is one, etc. (3) I think that's OK, however, keep in mind that if the user is very active on a personal level, this social online activity won't benefit his/her corporate profile.  If that person is willing to spend a little time every week in BOTH profiles, sharing, commenting, interacting, etc., then I think all is good. On the other hand, a social media profile that never interacts...just publishes...that looks like spam. (4) I would leave their profile alone, and encourage them to use it wherever they are going forwards.  If they continue to be active, build more trust and authority, etc., that can only benefit you. (5) They should.  NY Times does. It might not be affecting them now, with AuthorRank apparently not yet part of the algorithm, but it is expected to.  Keep in mind, giant corporations typically have a very hard time making changes, and for a massive industry leader like CNN or USA Today, they've got such strong backlink profiles that there isn't nearly the pressure on them to take advantage of new and upcoming factors like AuthorRank.