I am coached by Greg Mcmillan (for about 8 years now), I really like him -
www.mcmillanrunning.comIf I were not with Greg, and interested in running marathons primarily, I would look into Kevin Beck and Pete Pfitzinger
http://www.pfitzinger.com/services.shtml. I also have a friend who is a professional triathlete now, but used to be a professional runner who is a wonderful person and was coached by Greg when she was a professional runner, Kelly Lilijeblad
http://www.kellyliljeblad.com/ (look under the coaching tab).
The primary factor is that you have to have a good relationship with your coach, and trust them, so your instinct is important ... you need to talk to them.
Good luck April. I am sorry I have not mailed the shoes yet, with Dean not driving it has been super busy.