Most Major League Baseball teams have Minor League Departments, where the Scouts are. Scouts will visit Triple A teams and High Schools. They take note of talented young players, and meet with other decision making front office personnel. The final decision usually comes from the team Manager, and President/Vice=President of the team. If a team has a 'single' owner, who wants the last say, then of course, this is the final decision.
They go on the disabled list and maybe dropped from the team
Injured reserve list
The 7-day Disabled List was first in effect for the 2011 Major League Baseball season. The 7-day Disabled List is only for Major League Baseball players that have concussions that will need a few days to recover. Major League Baseball's Medical Director needs to receive a medical report for all players that have been placed on the 7-day DL and then the Medical Director for Major League Baseball will have to give his approval before the player can be activated.
It is an disabled list
Yes. The PUP list is similar to MLB's 60 day disabled list. Players receive full salary but are not allowed to play or practice. They may attend team meetings.
The DL or Disabled List.
As of May 20 2012, Yes
The Real World - 1992 The Disabled List 18-12 was released on: USA: 24 January 2007
Houston Texans
There are two. The IR, which is the Injured Reserve, and the PUP list, or the Physically Unable to Perfrom list. Also DL for Disabled List.
Yes, but only in case of injury. According to MLB Rule 40A: "A player must be on his club's active big league roster or disabled list (or bereavement list, suspended list, or military list) on August 31 in order to be eligible for post-season play." However, there are rules that allow for players that were called up in September to replace players that are injured during the playoffs and placed on the disabled list. In these cases, the replacement player must have been on the team's 40 man roster and must play the same position as the injured player.
Yes. An injured player doesn't need to go onto the Disabled List, and they frequently don't, especially for a minor injury. The Disabled List is a device set aside so that players who cannot play can be kept on the team's roster for 15 or 60 days without using up a roster spot. In other words, if a team called the Bulldogs had a center fielder named Bob Jones who had to miss 15 days, they could put him on the 15-Day Disabled List, which would allow them to call up a minor league player to use his roster spot, with no penalty. If he is not put on the DL, then he can start playing again at any time, but his roster spot cannot be filled by anyone else.