This article was first published in the Cougar Insiders newsletter. Sign up to receive the newsletter in your inbox each Tuesday night. On Friday, March 31, Kalani Sitake will welcome the public to an open scrimmage in LaVell Edwards Stadium at 3 p.m., followed by the alumni game comprised of former stars at 5 p.m. Because of the competitive nature of the alumni contest, last year’s last-second, game-winning TD pass by Max Hall and the fact it is on BYUtv has given the event an organic push. For Sitake, his squad will be on display beforehand in a controlled scrimmage. If history repeats, many first-team players will be used sparingly, if at all. Gates…