Complex sentence: Therefore, exogenous factors often times influence how marketers strive to improve their results such as leveraging the factors noted above (i.e. seasonality, interest rates, regulatory environment) in an effort to improve marketing effectiveness.
Split into simpler sentences: Therefore, exogenous factors often times influence how marketers can improve their results. One such example is when marketers choose to take advantage of exogenous factors such as seasonality, interest rates, or the regulatory environment in an effort to improve their marketing effectiveness.