No, NFL teams cannot sign new players during the playoffs.
Currently there aren't any teams in the NFL Playoffs, although if you are talking about the Superbowl, the last two teams were the San Francisco 49ers and the Baltimore Ravens. The Ravens eventually won.
12 teams
12 teams
Most teams get to make the playoffs at 8&8 if that is your question?
Eight
atlanta
Houston Texans has never made the NFL Playoffs.
No, NFL teams cannot sign new players during the playoffs.
No, NFL teams cannot sign free agents during the playoffs.
eight
Wade Phillips, currently the coach of the Dallas Cowboys, has lead 4 teams to the NFL playoffs in his 31-year coaching career.