Banks faced competition from five other goalkeepers, including 30-year-old Scotland international Johnny Anderson and 25-year-old Dave MacLaren. He started the 1959–60 season as the reserve team's goalkeeper. This in effect made him the club's second choice, ahead of four of his rivals but behind first team choice MacLaren. He had played four reserve team games when MacLaren picked up an injury, and manager Matt Gillies selected Banks for his Leicester debut against Blackpool at Filbert Street on 9 September. The match finished 1–1, with Jackie Mudie's strike cancelling out Ken Leek's opener. Banks retained his place for the 2–0 loss to Newcastle United at St James' Park three days later. With McLaren fit again, Banks was sent back to the reserves but, after the first team conceded 14 goals in the next five games, he was recalled and became the first-choice goalkeeper for the remainder of the season. The defensive record did not improve at first, with Banks conceding six in a heavy defeat by Everton at Goodison Park, but he improved in each match and the Foxes settled for a comfortable 12th-place finish. In training, he worked extensively on improving his weaknesses, such as coming for crosses. He put in extra hours during training and came up with practice sessions to improve his skills – this was largely unique in an era where there were no specialized goalkeeping coaches. In the summer, both Anderson and MacLaren departed, leaving Banks as the club's undisputed number one ahead of a group of understudies.