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OK - I would get a list of all of your old pages and start 301 redirecting them to your new pages asap.  This could be part of your issue.

Getting this on your Blog pages:

The page cannot be displayed because an internal server error has occurred.

where you aware?

Anyway - may I ask how old these pages are?

Yeah - with no path specified the directive is ignored.  (you don't have a '/' so the directive (disallow) is ignored)

however, you do direct to your xml sitemap which appears to be empty.  You might want to fix that....

Is it possible that the links used to link to internal pages that you have since killed and redirected to your home page?

That would scare me.  I would stop using that program and see if you can get the listings deleted.  If not I would disavow them through Google.  I wouldn't take any chances with something like this.

Yes and more than anything, learn from your successes and mistakes but don't get caught up in "well this worked for that client so it will work for this one" things change, different techniques seem to have different levels of effectiveness depending on the client and their market etc...  Nothing will teach you like experience will.

agreed - mine was simply my opinion as well  There is no wrong answer.

It could be that SEOMoz hasn't updated their index since you started ranking page one.  I could be incorrect (and please, anyone, correct me if I am) but I believe they work off of their own index that updates periodically rather than using Google's live index.

You mean 301, right?

I would say a category page as redirecting to a different product, no matter how similar, could make for a poor user experience.

This is what I get for page one:

www.hattorihanzoshears.com
www.kasho-usa.com/‎
www.amazon.com
search.ebay.com
www.mysalontools.com/top-10-best-hair-shears‎
www.shears4u.com/‎
www.dhgate.com
www.precisionshears.com
www.youtube.com
www.washiscissor.com

does this follow the crawl or what you see?

Yeah - I saw it after I posted my question.  If it was already there, I apologize for missing it.  What is the term and I will tell you what I see on page one. (I am in Jacksonville, FL)

Are you seeing this discrepancy in Google only?

Are you searching while logged out and in incognito mode?  You could just be seeing personalized and/or localized results.  What is the term and I will tell you what I see on page one.

** I think I posed this while you were adding your edit  OK - I retract my question

You might like one of these:

http://www.semgeek.com/

http://www.ppchero.com/popular/

Let's hope not...

If your client shops local universities for interns and/or employees, those universities will link to your client's jobs page from their careers page(s) as a resource for their students.  It is quite a relevant link and there are quite a few universities or colleges in OH... I'd hit them up as well as taking the on page advice that has been listed by Kade and Jesse (and anyone else that chimes in)

That is what I have seen as well.  I just assumed that is just how it is.  If I did something wrong and there should have been a confirmation than I certainly have a busy weekend a head of me....

"If I was the owner of that site I would want information on what type of content is bringing in the visitors and what kind of content isn't.  Then, using the successful content as a guide I would try to produce more of that kind of stuff."

Completely agree.  On any site the content is the most important but on a website like this it is almost everything.

Absolutely.  It just seems that at the end of the day it's going to be a guess so the most data you can put towards it the better your chance are of choosing correctly, of course.  I just hope that when you do make your decision it ends up being correct for at least the majority of the pages.  Good luck - I have faith in ya!

Google Trends shows 'Dr Credentials' as the one to go with...

"this is a one time change that would affect about 800,000 pages so we want to get it right the first time around and stick with that url."

Oh yeah - I dig that.

Maybe instead of just the one word checks simply make it more broad?  Like 'Dr credentials' and 'doctor background check"?  Those would probably register and would be a bit more relevant to your campaign... maybe?