// Update the team roster
db.teams.updateOne( { _id : 'team-one' }, [
  // Add 3 new players to the team
  {
    $set : {
      players : {
        $concatArrays : [
          '$players', [
            { number : 12, name : 'Alice' },
            { number : 18, name : 'Bob' },
            { number : 39, name : 'Chuck' },
          ],
        ],
      }
    }
  },
  // Remove someone from team by just one property (filter the players
  // list to only return players that don't have number 42)
  {
    $set : {
      players : {
        $filter : {
          input : '$players',
          as    : 'player',
          cond  : { $ne : [ '$$player.number', 42 ] }
        }
      }
    }
  },
  // You can expand this to remove multiple records at once:
  {
    $set : {
      players : {
        $filter : {
          input : '$players',
          as    : 'player',
          cond  : { $and : [
            // Remove any players with the number 0 or a blank name
            { $ne : [ '$$player.number', 0 ] },
            { $ne : [ '$$player.name', '' ] },
          ] },
        }
      }
    }
  },
] );