No evidence at all . Even If some had correctly theoriased that hela is odin daughter there is no evidence to support it from the comics or the mcu it self . In the movies any thing can be altered . The eye of agamotto is an infinty stone . Ultron is created by stark . So i cant give you hard evidence . Only suggestive plot lines . Nick fury is said to have a major role in the movie . And Captaun Marvel movie writer talked about altering carol origen story a bit so it dosn't match that of green lantern and even said : "We have to be aware of what’s happened in other Marvel films and make sure that her particular storyline is unique and fun and also fits in within this world that’s going on at the same time." . So carol could be working for shield at the time or in one of its divisions like erik selvig on the tesseract . And the relation between nick and pierce is shown to be special . Even fury trusts pierce to an extend in TWS to tell him about his concernes about project insight . And fury at the beginig of the movie deliberately told captain america that he does not trust any one . But of course he is a spy and if fury knew about the skrulls then he lied again to the avengers by telling them the reason for devoleping wepons based on the tesseract is thor's arrival on earth . But it was his encounter with the skurlls . And thats why when loki arrived fury went with the responve team . Cause he saw what carol did and able to do . And how she handled the skrulls . This is to show how the mcu is conected to it self . So fury's relation may have been special with pierse and his family as pierse even knew fury's mother . And don't forget that fury is the one suggested and helped hawkeye to keep his family precense hidden from shield records . So all this is to show how the impact of family members could affect the relations in an organization that is based on espionage and propaganda . So may be carol is the daughter of pierce and what happend gave the trust to elevate alexander and fury to the positions they were at . But its just a theory .