Adam Grosbard, SMU beat writer for SportsDayDFW.com and The Dallas Morning News, answered questions about the Mustangs and the American Athletic Conference in a live chat recently. Here are some highlights:Who is the most underrated player on the 2018 SMU football roster?Grosbard: Probably Chad Pursley. The tackle had a quietly strong season in 2017 but is getting overlooked by many observers because of the three JuCo offensive linemen that Sonny Dykes brought in, but if Pursley is the Game 1 starter it isn't the end of the world for the Mustangs.Who is the most successful SMU football/basketball pro in recent memory?Grosbard: It's either Emmanuel Sanders or Thomas Morstead.