Scrimmage No. 2 is in the rearview mirror for the Texas Longhorns and the coaching staff has a pretty good idea of the two-deep and special teams guys. So too will Inside Texas readers early next week. Saturday’s scrimmage No. 3 will be, as Steve Sarkisian calls it, a “mock game.” The coaches and players will simulate a real pre-game and likely have a halftime to get players as used to a real, live contest as possible. [Sign up for Inside Texas and get the BEST Longhorns scoop!] “As we head into this week, we have what we call a mock game on Saturday where we work all of our substitutions and …