You will be tying many strings together. There will be people (probably more than the number of layers on your sketch file) chipping into design decisions — business strategists, researchers, product managers, developers, data scientists and may be more.
It is going to be your work to bind these teams, their goals and views towards a coherent vision. I know it could be fatigue-infecting. To a few of you it might come naturally or you would have learnt it in school. If not, then start practicing it now, wherever you are. It will be exponentially worthwhile.