[{"_id":"0894f016e6e2e073c19e051","allowedusers":["admin","Fred","Bob","Layneh"],"name":"News management","divisions":[{"allowedusers":["admin","Larry","Bob","Harry","Fred"],"_id":ObjectId("60894f016e6e2e073c19e052"),"name":"Finances","credentials":[{"_id":"94f0944f016e6e2e2342cc","name":"FNB - FA","userName":"example@email.com","password":"examplePassword!@#"}]},{"allowedusers":["admin","Larry","Bob","Harry","Fred"],"_id":ObjectId("60894f016e6e2e073c19e052"),"name":"Development","credentials":[{"_id":"94f0944f016e6e2e2342cc","name":"FNB - DEV","userName":"example@email.com","password":"examplePassword!@#"}]}],"__v":11}]

db.collection.update({name:"News management"},{$pull:{"divisions.$[].allowedusers":"Fred"}})