Here's a nice writeup by Matthew Coller of WGR mostly on Girgenson's development and long term potential:
http://www.wgr550.com/Amerks-Battle--Fall-to-Marlies--Girgensons-Shines/16243336
"The 19-year-old has grown a great deal since October, when he walked onto the ice as the youngest player in the AHL. He's harder now. More mature. And has every bit the confidence and drive required of a future top-line NHL."