Kiszla: Are Broncos any good? Or just plain lucky? Big questions after 24-21 win in opener.

Trevor Williams (24) of the Los Angeles Chargers drives Emmanuel Sanders (10) of the Denver Broncos out of bounds, making a 20-yard run for a first down during the third quarter of action. The Denver Broncos hosted the Los Angeles Chargers at Sports Authority Field at Mile High in Denver, Colorado on Sept. 11, 2017.