In terms of instant NFL impact, Cardinals general manager Steve Keim has a different comparison at the ready.
"I haven't seen a rookie come in and do what he's done -- and it's early still -- since Anquan Boldin," Keim told Grantland's Robert Mays on Monday. "This guy came through the first day, and being from Pittsburg State, has uncanny instincts, unbelievable understanding of route concepts, leverage, being in the right spot at the right time. On top of great ball skills, he has unusual speed and explosiveness."
Keim's comments are an extension of his early-camp assessment that Brown has essentially been uncoverable.
"He had five for 87 in the first half (against Houston)," Keim continued. "If you watch the film, he probably should have had seven or eight for about 200."
All of which raises a more interesting point: Which team does Fitzgerald play for in 2015 when the Cardinals balk at his $23.6 million salary cap figure?