Complex sentence: Creative direction of "American Dad!" has largely been guided by Barker (up until (including) production of season 10) and Weitzman as opposed to MacFarlane, this believed to have nurtured in distinguishing the series from its counterparts.
Split into simpler sentences: Creative direction of "American Dad!" has largely been guided by Barker (up until (including) production of season 10) and Weitzman as opposed to MacFarlane. This is believed to have nurtured in distinguishing the series from its counterparts.