Prior to the 1922 season, Warner announced he was leaving Pitt to take the head coaching position at Stanford, but he honored his contract and remained at Pitt through 1923. 1922 resulted in an 8–2 record, and the season ended on a high note when the Panthers took their first cross-country trip, by train, to defeat Stanford, coached by two Pitt assistants sent ahead by Warner, 16–7 at Stanford. Warner's final season was his worst at Pitt as the Panthers stumbled to a 5–4 record in 1923. However, the Warner era at Pitt closed on a high note with a 20–3 victory over Penn State on November 29. In all, Warner coached his Pitt teams to 33 straight wins and three national championships (1915, 1916 and 1918). He coached Pittsburgh from 1915 to 1923 to a combined 60–12–4 record. Importantly, Warner helped raise the interest in Pitt football to the point where the university sought to build an on-campus stadium with increased seating capacity that would be dedicated to the football team, and the school began taking steps to secure the necessary land and funds to build Pitt Stadium.