He or she is responsible for organizing your league's Draft Day and communicating with your stat service and other owners about rosters, trades, transactions, standings, and league business. Team owners meet the week before or after Opening Day to draft teams comprised of 23 players from either the American or National leagues.
Some leagues choose to combine leagues.
For a NL league, add a 10th pitcher and a 2nd utility player. There are two ways to select players. In an auction-type draft, players are auctioned to the highest bidder. In a NL league, the salary cap is 280 points. The auction price becomes that player's salary.