Is CRO more than A/B testing?

Hi,

If you got hired as the guy responsible for CRO, what is your daily routine? I'm asking that because I think I'm missing something about CRO day-by-day tasks. For example, I know that I need to run an A/B experiment. However, it's advice to run one experiment at a time for at least two weeks. So, what do I do in the meantime? If I do any other experiment or make changes on the website, I may put the whole experiment in jeopardy.

Any help?

I am trying to get a job in CRO and read about it a bit.

All I can say is that it's a lot more than A/B testing.