of course jerry is the main bad influence on this franchise
having said this, jerry did not make garrett make poor in-game decisions, he also did not design a predictable offense where the defense can dictate whether you will pass or run based on their formation, the talk last pre-season was that kiffin was coming in because of his ties with garrett (of course the narrative changed once kiffin presided over a historically bad defense), i bet if we had fielded a top 5 defense, none of the garrett homies would be giving the credit to jerry, it would be all "garrett is building a team" stuff
so, yes jerry is to blame, but so is garrett
3 years into a supposed 3 year plan, we are still 8-8 and all i hear is that it will take more than one season to build the defense
so now we are on a 5-7 year plan
just moving the goalposts, that is all it is
garrett came into this HC position after being very familiar with the organization and having been the OC for 3 years. so he was very aware of jerry's meddling ways. so he has no excuse. as i said before, he is either a bad coach who makes poor plans/decisions/coaching hires or he is a spineless jelly fish that lets jerry walk all over him
neither is what i would want as HC for a team I am rooting for