So people here either say it is Kens fault or Josh’s for failure to take advantage of opportunities. If Josh isn’t mentally prepared to adjust quickly, that either means a) he’s not preparing himself or is uncoachable or b) Ken isn’t taking time to make sure Josh knows exactly what to expect and where to go and who to look for.
iMO, it comes back to coaching. Ken has got to do a better job helping Josh out not just with play calling, but what to look for out on the field.