In 2010, Lulay made his first professional start in the fourth game of the season against Toronto following injuries to starter Casey Printers and was expected to lead the Lions until Printers was ready to make his return to the lineup. However, Lulay was replaced by Jarious Jackson during the fourth quarter of the August 7th game against Calgary and also started the following game against Saskatchewan. Printers returned for the next game and won three out of the five games he started, but due to his turnover-filled back-to-back performances, he was replaced with Lulay as the starter in Game 13 against Winnipeg, which the Lions won. After Lulay had a minor injury in the following game, again against Winnipeg, Printers came into the game to protect a 21-point lead. The Blue Bombers stormed back to tie the game and force overtime, which was decided by Printers' game-clinching interception. It was Casey's last game with the Lions as Buono released him soon after the game. Consequently, Lulay became the undisputed starting quarterback, finishing the season 4–5 as a starter.