>>126438824Season 3 has a bunch of great episodes. So does S4 but the hiatuses were the most painful in the entire show (yes I'm including the 6 month one in S5) and S5 and Future also have a bunch of great episodes.
Now if you want to say the overall quality of production and writing dropped, sure I'd be willing to concede on that point. Ian leaving probably didn't help but I don't think he was an integral as people think he was.