One of the biggest days on sports calendars is Selection Sunday, when the bracket for the NCAA Division I Men's Basketball Championship is announced. But after the Division I Men's Basketball Committee sets the field and it is revealed on CBS, the work is hardly done for the NCAA staff. Here are some of the details that have to be addressed later that day:

• Hank Nichols, NCAA coordinator of men's basketball officials, assigns the 96 officials chosen to work the tournament games, from the opening-round game in Dayton, Ohio, to each of the eight first- and second-round sites. Background checks on officials' alma maters and current conferences affiliations are made to avoid conflicts of interest. Officials are informed of their selection two or three days before the bracket is announced. Tournament managers at each site contact the officials and let them know when they need to be in that city for their assignment. They are informed of the specific game they will officiate on the morning of when the games begin at a site.

• NCAA travel coordinator Juanita Sheely helps arrange travel and lodging for all 65 men's and 64 women's teams selected. That equates to moving about 10,000 people. Of course, many institutions have questions, and Sheely provides answers. Most of the travel for the first- and second-round games is scheduled for chartered aircraft.

About 24 women's teams and 12 men's teams are cleared to drive to their destination because they are located within 300 miles of their playing sites. After game times are assigned, institutions are informed of their practice times, which occur the day before their competition.

• Greg Shaheen, NCAA vice-president for Division I men's basketball and championship strategies, helps plot the television schedule for the first-round games. Greg Weitekamp, NCAA associate director of broadcasting, and Chris Farrow, NCAA manager of broadcasting, assist Shaheen in making the schedule.

They are looking at the 21 institutions that have teams in both the men's and women's tournaments and making sure to avoid any television conflicts. They also want to make sure teams from similar regions, such as North Carolina, North Carolina State and Duke, aren't scheduled to play in the same television window.

The television schedule is done in time to reach the deadlines of newspapers on the East Coast. This also helps fans prepare their travel plans.

Shaheen, who already had a late night before the selections, still must lead a conference call with the opening-round and first-round sites to make sure everything is in order, from hotel accommodations, basketballs for practices, signage and game tickets for the institution's traveling party.

-- Greg Johnson