[{"team":[{"name":"pat","age":NumberInt(30),"address":{"street":"12 Baker St","city":"London"}},{"name":"dallas","age":NumberInt(36),"address":{"street":"12 Cowper St","city":"Palo Alto"}},{"name":"Dallas","age":NumberInt(36),"address":{"street":"12 Cowper St","city":"Palo Alto "}},{"name":"charlie","age":NumberInt(42),"address":{"street":"12 French St","city":"New Brunswick"}}]}]

db.collection.aggregate([{$project:{_id:0,result:{$sortArray:{input:"$team",sortBy:{name:1}}}}}])