My impression is that while he isn't as good as Johnson, he is the same type of receiver. as i said, i don't see much of a difference other than that johnson can jump a little higher and marshall is a bit more physical. marshall seems to be a bit more of a possession receiver as well and isn't used quite so much in the red zone for some reason. Johnson seems to be more sane, tough and dependable. Banedon's first post says that Marshall and Cutler have a good relationship, albeit in 2010. However, if Marshall isn't used int eh red zone as much, doesn't that go against what we think we need?