Hello Haejok,
Not to say A&M will cover but here is my take on your points:
2013 A&M beat SMU (a better team than this year version) by 29 points also before Arkansas game
also beat Sam Houston St., a very good FCS, by 37 points before Alabama game
2012 beat South Carolina State by 56 points before Arkansas game
This year SMU allowed 43 points to a below average North Texas and scored the only TD in last play should be a red flag.
You may be right about the new HC but it is an unknown for now.
It would be A&M or no play for me.
BOL to you either way you choose.