It's a well known fact that GI Joe jumped the shark when Serpentor took over for Cobra Commander.

And it's just as well known that Transformers jumped when Galvatron took over the Decepticons and Rodimus Prime took control of the Autobots.

So now richard takes over for DriverGuy. Change in leadership = jump the shark.

On a side note, it would be cool if they make a WD movie and Scott gets turned into a snake and keeps saying "I wasssss oncccce a maaaaan!!!"