Black Widow Stand-Alone: 10 Things Marvel Must Do

This is a simple request, and the easiest to solve, but realistically it's hopeless. In every single one of Scarlett Johansson's appearances in her 5 MCU movies so far, her character has been given a drastically different haircut, while most other (largely male) characters have remained largely the same.

Does the hairdresser on the helicarrier have a thing for redheads? Is standing out like a Pantene model really what a super-spy should be going for? Are we still in an age where Hollywood thinks audiences will tire of seeing the same woman two films in a row without changing her appearance in some enticing new way?

Maybe let the international espionage agent worry about how she's going to infiltrate a terrorist cell or interrogate a god rather than how she needs to crimp her hair for once, please.