Each player who makes his major league debut this season had a scout and/or scouting director recommended him to his signing organization. To give credit where credit is due, we'll track those scouts and those directors for each player to make the big leagues for the first time in 2012.

Players are sorted in alphabetical order by debut date. Included with each listing is signing organization, year and draft round in parentheses where applicable. Source indicates the high school, college or country from which each player signed. The BA Executive Database supplies the names of scouting directors.

Players listed with an asterisk (*) were major league Rule 5 draft selections last December, while a cross (†) indicates players who were drafted one year and signed the next as part of baseball's defunct draft-and-follow process.