Switch from Mariota to Tannehill gives Titans hope

Tennessee Titans quarterback Ryan Tannehill (17) leaves the field after an NFL football game against the Los Angeles Chargers Sunday, Oct. 20, 2019, in Nashville, Tenn. The Titans won 23-20. (AP Photo/James Kenney)

Los Angeles Chargers defenders celebrate after stopping the Tennessee Titans on a fourth-down play late in the fourth quarter of an NFL football game Sunday, Oct. 20, 2019, in Nashville, Tenn. (AP Photo/James Kenney)

Tennessee Titans defensive lineman Jeffery Simmons (98) sacks Los Angeles Chargers quarterback Philip Rivers (17) for a 3-yard loss in the second half of an NFL football game Sunday, Oct. 20, 2019, in Nashville, Tenn. (AP Photo/James Kenney)

Tennessee Titans kicker Cody Parkey (3) reacts to missing an extra point by hitting the right upright in the second half of an NFL football game against the Los Angeles Chargers Sunday, Oct. 20, 2019, in Nashville, Tenn. (AP Photo/James Kenney)

Tennessee Titans wide receiver Tajae Sharpe (19) celebrates with Adam Humphries (10) and Taylor Lewan, left, after Sharpe scored a touchdown against the Los Angeles Chargers in the second half of an NFL football game Sunday, Oct. 20, 2019, in Nashville, Tenn. (AP Photo/Mark Zaleski)