Debrief: Dale Earnhardt Jr. and Steve Letarte on a new level of concussion candor; authoring books; rekindling their tight-knit friendship; what's ahead for Matt Kenseth; and what Trevor Bayne should do

In our post-Wednesdays With Dale Jr. episode, the NBCSN analysts discuss many topics, including an introspective explanation of why Dale painstakingly kept track of his concussion experiences for a new book; Steve's upcoming new book about his time with Dale; their joy about working closely together again; how long Matt Kenseth might drive for Roush Fenway Racing; and where Dale believes Trevor Bayne should race next. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising. See omnystudio.com/listener for privacy information.