Jake is an artist and portrait painter. Manuel commissions lake to paint a portrait of his family and also a painting of an important historical event in Manuel's family history that Jake has deeply researched, in order to get the details,right. ls Jake allowed to assign the contract to Jake's friend, who is also a portrait painter? if Manuel no longer wants the historical painting, is Manuel allowed to assign the contract to a friend of his so that Jake will paint it for that friend instead?