In EDI terminology inbound and outbound refer to the direction of transmission of an EDI document in relation to a particular system, not the direction of merchandise, money or other things represented by the document.
It's only to a degree. At Triple-A, the highest minor league level, the typical monthly wage is $2,150 a month. That's not a lot of money, especially when you consider... That the minor league season is only about five months long. Minor leaguers aren't paid outside of the season, even though... They report to spring training, participate in various workout programs and do other such things that require them to commit time to their baseball careers. They do these things without pay.
There may also be other expenses negotiated into the contract, like education. However, once players are playing in the minors, their actual salaries are the same by level: In the first year, a class A-short season player is paid $850/month. The pay increases by minor league level, so that a first-year player in triple-A makes $2150/month. After the first year, salaries are negotiable, but the player can be paid no less than the first year numbers. Here's the full list: First contract season: $850/month maximum.