According to the source, Kansas City will trade its second-round pick in the 2013 draft (the second selection in the round) and another conditional mid-round pick in 2014.
The trade cannot be officially completed until March 12, which is when the 2013 league year officially begins.
Smith, 28, has thrown for 14,280 yards with 81 touchdowns and 63 interceptions in 80 career games.