In the 2019-2020 season, Leitao began the season suspended due to a recruiting violation in connection with a former player. He made his season debut at Iowa following assistant Tim Anderson coaching the Blue Demons to three straight wins. He won nine of his first ten games of the season including an upset at Iowa and an exciting overtime win against Texas Tech at home. After coaching DePaul to 9 of its 12 non-conference wins and only losing a single non-conference game, Leitao coached the team to a 3-15 conference record, enough to land the team in last place of the Big East conference for the fourth consecutive season. Leitao won a Big East Tournament game for the first time ever, beating Xavier 71-67. The remainder of the tournament would be cancelled the next day due to concerns over the coronavirus. While DePaul won 16 games this season, only 13 of those wins are attributable to Dave Leitao's head coaching record, as he was suspended for and did not coach in three of DePaul's wins. Following the season, DePaul extended Leitao's contract through the 2023-24 season.