All eyes are on sophomore Jackson Arnold in the Oklahoma quarterback room, but the Sooners have talent and experience behind him as well. OU coach Brent Venables spoke highly of both transfer Casey Thompson and true freshman Michael Hawkins after practice on Tuesday. Thompson is a name who is familiar to Sooner fans as both his father, Charles, and his brother Kendal are former Oklahoma quarterbacks. He is set to enter his seventh season of college football after beginning his career at Texas in 2018. Having such an experienced quarterback in the room alongside the youth of both Arnold and Haw…