By Jelani Scott Texas quarterback Arch Manning’s time as a starter has yet to arrive, but the touted freshman’s reported progress with the 2023 season coming to an end could be a sign of things to come. After spending the season learning the playbook as the Longhorns’s third-string QB, Manning has reportedly made great strides, having now improved “to the point where he can run the entire offense,” per Rivals.com’s Anwar Richardson. Manning’s development has also seen the 6’4” signal-caller jump from 210 pounds upon his arrival in January to 225 pounds of “all muscle,” according to Richardson….