As a result of CBS taking over production responsibilities for the "TNF" broadcasts, its number one broadcast team of Jim Nantz and Phil Simms took over the broadcast booth. With NBC adding games in 2016, Al Michaels and Cris Collinsworth, the broadcast team of "NBC Sunday Night Football", were required under league contract to do the same. NBC had initially hired former "Monday Night Football" play-by-play man Mike Tirico for Thursdays before the league nixed the idea of any separate broadcast teams for Sunday and Thursday nights. Tirico would eventually call three "Sunday Night Football" games, including the Thanksgiving night game which is in the "SNF" package, in order for NBC to allow Michaels over a week's rest before the end of the season. Tirico would also call the December 22, 2016 "TNF" game alongside Collinsworth, as well as two NBC-produced "Thursday Night Special" game broadcasts on December 18 and Christmas Day, respectively, both alongside former USFL and NFL quarterback Doug Flutie, who serves as the analyst for NBC's college football coverage as well. On May 31, 2017, it was announced that Mike Tirico would replace Al Michaels full-time for NBC's "Thursday Night Football" games. For 2017, Kurt Warner would similarly fill in for Collinsworth on two non-Thursday games.